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9012 Investigate life and work related problems using data and probabilities Learner Guide 1 LEARNING UNIT: 9012 Investigate life and work related problems using data and probabilities CREDITS: 05 NQF LEVEL: 03 LEARNER MANUAL LEARNING PROGRAMME DEVELOPED BY YELLOWMEDIA PUBLISHERS

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Page 1: 9012 Investigate life and work related problems using data and probabilities

9012 Investigate life and work related problems using data and probabilities Learner Guide 1

LEARNING UNIT: 9012 Investigate life and work related

problems using data and probabilities

CREDITS: 05

NQF LEVEL: 03

LEARNER MANUAL

LEARNING PROGRAMME

DEVELOPED BY YELLOWMEDIA

PUBLISHERS

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9012 Investigate life and work related problems using data and probabilities Learner Guide 2

Welcome to the programme Follow along in the guide as the training practitioner takes you through the material. Make notes and sketches that will help you to understand and remember what you have learnt. Take notes and share information with your colleagues. Important and relevant information and skills are transferred by sharing!

This learning programme is divided into sections. Each section is preceded by a description of the required outcomes and assessment criteria as contained in the curriculum. These descriptions will define what you have to know and be able to do in order to be awarded the credits attached to this learning programme. These credits are regarded as building blocks towards achieving the Qualification upon successful assessment and can never be taken away from you!

Programme methodology The programme methodology includes facilitator presentations, readings, individual activities, group discussions and skill application exercises. Know what you want to get out of the programme from the beginning and start applying your new skills immediately. Participate as much as possible so that the learning will be interactive and stimulating.

The following principles were applied in designing the course: Because the course is designed to maximise interactive learning, you are

encouraged and required to participate fully during the group exercises As a learner you will be presented with numerous problems and will be required to

fully apply your mind to finding solutions to problems before being presented with the course presenter’s solutions to the problems

Through participation and interaction the learners can learn as much from each other as they do from the course presenter

Although learners attending the course may have varied degrees of experience in the subject matter, the course is designed to ensure that all delegates complete the course with the same level of understanding

Because reflection forms an important component of adult learning, some learning resources will be followed by a self-assessment which is designed so that the learner will reflect on the material just completed.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 3

This approach to course construction will ensure that learners first apply their minds to finding solutions to problems before the answers are provided, which will then maximise the learning process which is further strengthened by reflecting on the material covered by means of the self-assessments.

Different types of activities you can expect

To accommodate your learning preferences, a variety of different types of activities are included in the formative and summative assessments. They will assist you to achieve the outcomes (correct results) and should guide you through the learning process, making learning a positive and pleasant experience. The table below provides you with more information related to the types of activities. Icons Type of assessment Description

Formative knowledge

assessment:

This comprises of questions

to assess your knowledge.

You must obtain at least 80%

in each assessment criterion.

Teamwork Self-Assessment

Form

After you completed this

course, you will be required

to assess your own

behaviour regarding team

work.

Work place experience After you completed this

course, you will be required

to assess your own

behaviour regarding work

experience.

Project research After you completed this

course, you will be required

to assess your own

behaviour regarding

research.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 4

Learner Administration Attendance Register You are required to sign the Attendance Register every day you attend training sessions facilitated by a facilitator. Programme Evaluation Form On completion you will be supplied with a “Learning programme Evaluation Form”. You are required to evaluate your experience in attending the programme. Please complete the form at the end of the programme, as this will assist us in improving our service and programme material. Your assistance is highly appreciated.

Learner Support The responsibility of learning rests with you, so be proactive and ask questions and seek assistance and help from your facilitator, if required. Please remember that this learning programme is based on outcomes based education principles which implies the following:

You are responsible for your own learning – make sure you manage your study,

research and workplace time effectively.

Learning activities are learner driven – make sure you use the Learner Guide and

Formative Assessment Workbook in the manner intended, and are familiar with the

workplace requirements.

The Facilitator is there to reasonably assist you during contact, practical and

workplace time for this programme – make sure that you have his/her contact

details.

You are responsible for the safekeeping of your completed Formative Assessment

Workbook and Workplace Guide

If you need assistance please contact your facilitator who will gladly assist you.

If you have any special needs please inform the facilitator.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 5

Learner Expectations Please prepare the following information. You will then be asked to introduce yourself to the instructor as well as your fellow learners

Your name

The organisation you represent

Your position in the organisation

What do you hope to achieve by attending this programme / what are your expectations?

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9012 Investigate life and work related problems using data and probabilities Learner Guide 6

Information about this module Overview 9012 Investigate life and work related problems using data and probabilities . Scope of the programme The learning contained within this module will enable learners to:

Pose questions, collect and organise data.

Represent, analyse and interpret data using various techniques.

Use random events to explore and apply, probability concepts in simple life. Entry Level Requirements The credit value is based on the assumption that people starting to learn towards this unit standard are competent in Mathematics and Communications at NQF level Target group Mode of delivery This module will be delivered to you in a four day facilitated workshop. During these four days you will be required to complete formative activities during class time as well as after class in your own study time. Unit standard alignment Unit standard Number : 9012 Investigate life and work related problems using data and

probabilities NQF Level :03 Credits :05 Learning time It will take the average learner approximately 05 learning hours to master the outcomes of this programme. Assessment

Formative assessment will take place during the learning process in class through means of exercises. You will be required to complete activities as part of a group in class as well as individual activities. These formative activities will help prepare you for your final assessment.

Summative assessment will be conducted at the end of this learning process

through means of a Portfolio of Evidence. In order to assess whether a learner can actually demonstrate the desired outcomes,

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assessment criteria are included in the unit standard. Each outcome has its own set of assessment criteria. The assessment criteria describe the evidence that is needed that will show that the learner has demonstrated the outcome correctly. It is of utmost importance that the learner fully understands the assessment criteria as listed in the unit standard, as it is the only way in which the learner will know what he will be assessed against. The final or summative assessment is the most important aspect of this training program. It is during this process that the learner will be declared competent or not yet competent. The learner will know exactly how he will be assessed, and when and where he will be assessed. All of these details must be obtained from the training provider where the learner enrolled for his program. Range statements This unit standard includes the requirement to: Identify issues suited to resolution by statistical methods Select a suitable sample Collect and generate data through the use of questionnaires and suitable experiments Calculate statistics and probability values through the use of calculators Represent data in the form of tables, charts and graphs Use statistics and representations of data to argue a resolution of an issue Interpret statistics, the use of probabilities, and representations of data Determine probability values Work with probability in practical situations Use available technology (i.e. whatever is available for working with data e. g. pencil and ruler, including spreadsheets, graphical calculators) to fit appropriate curves (e.g., linear, quadratic) to data

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More detailed range statements are provided for specific outcomes and assessment criteria as needed.

Remember: Also included in the unit standard are the range statements in support of the assessment criteria. The range statements indicate detailed requirements of the assessment criteria.

The learner guide The learner guide is included in this material under various learning units. The learner guide has been designed in such a manner that the learner is guided in a logical way through the learning material and requirements of the unit standard. RPL assessment The assessment of RPL learners will be conducted in the same way as for those of new learners. The assessment pack is exactly the same and will therefore be used for new learners as well as RPL Learners. It must however be noted that learners who are applying for RPL must provide proof of previous learning and subject related experience prior to the assessment. This proof or evidence can be in the format of certified copies (certificates) of previous learning programs that have been attended. All the evidence will be assessed and authenticated before a learner will be allowed to enrol for an RPL program.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 9

Contents

Welcome to the programme ................................................................................................. 2

Programme methodology ..................................................................................................... 2

Different types of activities you can expect .......................................................................... 3

Learner Administration ......................................................................................................... 4

Learner Support ................................................................................................................... 4

Learner Expectations ........................................................................................................... 5

Information about this module .............................................................................................. 6

Learning Unit 1: ................................................................................................................. 12

Terminology .................................................................................................................................. 14

Types of Data ............................................................................................................................... 17

Qualitative Research versus Quantitative Research ............................................................. 19

The Research Question .............................................................................................................. 19

The Hypothesis ............................................................................................................................ 21

Data Collection Methods ............................................................................................................ 24

Research Report .......................................................................................................................... 29

Data Types.................................................................................................................................... 30

Formative assessment ....................................................................................................... 33

Role play................................................................................................................................... 33

Activity: 01 ............................................................................................................................... 33

Essay –Reflexive ............................................................................................................... 37

Learning Unit 2: ................................................................................................................. 38

The Sample Mean ....................................................................................................................... 43

The Median ................................................................................................................................... 44

The Mode ...................................................................................................................................... 45

Formative assessment ....................................................................................................... 53

Role play................................................................................................................................... 53

Project ....................................................................................................................................... 54

Group Activity: 05 .................................................................................................................. 54

Research PROJECT ................................................................................................................. 55

Activity: 06 ............................................................................................................................... 55

Summative assessment ..................................................................................................... 56

Simulation ................................................................................................................................ 56

ACTIVITY 02............................................................................................................................. 56

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9012 Investigate life and work related problems using data and probabilities Learner Guide 10

Learning Unit 3: ................................................................................................................. 58

Geometrical Symmetry ............................................................................................................... 59

The Properties of a Trapesium .................................................................................................. 62

Pythagoras Theorem ................................................................................................................... 63

Formative assessment ....................................................................................................... 64

Role play................................................................................................................................... 64

Activity: 07 ............................................................................................................................... 64

Research PROJECT ................................................................................................................. 66

Activity: 09 ............................................................................................................................... 66

Simulation ................................................................................................................................ 67

ACTIVITY 03............................................................................................................................. 67

Essay –Reflexive ............................................................................................................... 68

Annexure 1: Growth Action Plan ....................................................................................... 69

Annexure 2: Words that are new to me............................................................................. 70

Annexure 3: Training Evaluation ....................................................................................... 71

Annexure 4: Evaluation of Facilitator ................................................................................ 72

2. Bibliography ............................................................................................................. 73

SECTION C: SELF REFLECTION .............................................................................. 74

Self-Assessment .......................................................................................................... 76

Learner Evaluation Form ........................................................................................... 77

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Learning path:

Pose questions, collect and organise data.

Represent, analyse and interpret data using various techniques.

Use random events to explore and apply, probability concepts in simple life.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 12

Learning Unit 1:

At the end of this module learners will be able to:

Introduction

1. Situations or issues that can be dealt with through statistical methods are identified correctly.

2. Variables contributing to a problem situation are identified and addressed in data gathering, e.g. crime is related to time of day and location.

3. Appropriate and efficient methods are used to collect, record and organise data.

4. Data samples are of adequate size and are representative of the population.

Conclusion

Pose questions, collect and organise data

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Introduction to Statistics and Probability

Wherever you work or whatever job you do, you cannot

escape statistics – very few decisions that we make for

business, industry or government are made without giving

some consideration to statistical data. Such data includes

financial data,

population demographics, a

attitudes and lifestyle choices of people,

Health statistics, and much, much more.

Below are some examples of statistics:

Think about how stupid the average person is; now

realise half of them are dumber than that.

- George Carlin

47.3% of all statistics are made up on the spot.

- Steven Wright

About 3000 years ago, most Egyptians died by the time they were 30.

A toothpick is the object most often choked on by Americans!

Austria has the highest per-capita rate of deaths resulting from "fall

involving ice-skates, skis, roller-skates or skateboards.

30% of Chinese adults live with their parents.

The animal with the largest brain in proportion to its size is the ant. They are the smartest species

of insects with about 250,000 brain cells.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 14

Terminology

In order to make the most of this learning opportunity, it is important that you know and understand

the terminology associated with statistics and probability.

Terminology Meanings

Information Information is the processed form of data.

Mean Average: approximating the statistical norm or average or expected value

Median The middle value of an ordered set of values

Mode The value that occurs the most frequently in a data set or a probability

distribution

Model A standardized representation of data objects used as a container for

transactions, a framework for analysis, and a vocabulary for management.

Population In statistics, population can mean people, but it can also represent any

item or object that is part of the set you are investigating.

Probability Probability is a measure of how likely an event is to occur

Random

sample

A sample in which every element in the population has an equal chance

of being selected

Range The difference between the lowest and highest values. (In {4, 6, 9, 3, 7}

the lowest value is 3, and the highest is 9, so the range is 9-3 = 6.

Ratio A ratio is a proportion - the relation between things (or parts of things) with

respect to their comparative quantity, magnitude, or degree

Sample This is a set of data that you take from the population (usually when it is

too difficult or impossible to include the entire population in the survey)

Statistic A statistic is a summary value calculated from a sample. For example, we

might compute the average age of all respondents.

Statistical

inference

When you use information from a sample to draw conclusions

(inferences) about the population from which the sample was taken, this is

called ‘statistical inference’.

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Terminology Meanings

Correlation In statistics, correlation and dependence are any of a broad class of

statistical relationships between two or more random variables or

observed data values.

Data Data is a collection of facts, figures and statistics relating to a topic.

Experiment An experiment is any process or study which includes the collection of

data, the outcome of which is unknown. In statistics, the term is usually

restricted to situations in which the researcher has control over some of

the conditions under which the experiment takes place.

Experimental unit A unit is a person, animal, plant or thing which is actually studied by a

researcher - the basic objects upon which the study or experiment is

carried out.

Statistics or statistic?

A statistic is a quantity (amount) that is calculated from a sample of data. We use the average of

the data in a sample to give information about the overall average in the population from which we

took the sample.

Terminology Meanings

Variable A variable is a characteristic that may assume more than one set of

values to which a numerical measure can be assigned. Height, age,

amount of income, province or country of birth, grades obtained at

school and type of housing are all examples of variables.

Variance In probability theory and statistics, the variance is used as one of

several descriptors of a distribution. It describes how far values lie from

the mean.

The Concise Oxford Dictionary defines statistics as “numerical

facts systematically collected” and statistic as “statistical fact or

item”.

Statistics entails all aspects of information: collecting, organizing,

comprehending, communicating, and interpreting.

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It is possible to draw more than one sample from the same population and the value of a statistic

will generally vary from sample to sample. For example, the average value in a sample is a

statistic. The average values in more than one sample, drawn from the same population, will not

necessarily be equal.

Population and Sample

A population is any entire collection (set) of people, animals, plants or things from which we may

collect data. It is the entire group we are interested in, which we wish to describe or draw

conclusions about.

In order to make any generalisations about a population, a sample, that is meant to be

representative of the population, is often studied. For each population there are many possible

samples. A sample statistic gives information about a matching population parameter. For

example, the sample average (mean) for a set of data would give information about the overall

population average (mean).

A sample is generally selected for study when the population is too large to study as a whole.

However, the sample should be representative of the general population. You can usually best

achieve this by random sampling.

Remember that a sample is a group of units selected from a larger group (the population). By studying the sample you can draw valid conclusions about the larger group.

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It is important that the investigator carefully and completely defines the population before collecting

the sample, including a description of the members to be included.

Parameters

A parameter is a value, usually unknown (and which therefore has to be estimated), used to

represent a certain population characteristic. For example, the population mean (average) is a

parameter that is often used to indicate the average value of a quantity.

Within a population, a parameter is a fixed value which does not vary. Each sample drawn from the

population has its own value of any statistic that is used to estimate this parameter. For example,

the mean (average) of the data in a sample is used to give information about the overall mean

(average) in the population from which that sample was taken.

Parameters are often assigned Greek letters (e.g. ), whereas statistics are assigned Roman

letters (e.g. s).

Types of Data

Categorical Data

Categorical (also called qualitative, and sometimes nominal or ordinal) data is data where what is

being recorded cannot be readily identified with the real numbers. Examples include colours of

cars (red, green, black), size of eggs (small, medium, large), sex (male, female).

One can count the number of cars of various colours, and display that information in a bar chart or

pie chart, but one cannot combine the various cars and conclude that the average car is brown.

(We shall not devote much attention to categorical data because we cannot manipulate it.)

The population for a study of infant health might be all children born in

Mpumalanga in the 1990's.

The sample might be all babies born on 17th May in any of the years (1990-

1999).

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Quantitative Data

Quantitative data (also further specified as interval and ratio, the distinction between which is not of

interest for our purposes) is data where what is being recorded can be identified with the real

numbers. Examples include: age, I.Q., weight, height. Identification with the real numbers makes it

easier to organize, understand, and communicate this data.

Statistics is therefore the summary of data gathered from a population of people or things.

Sometimes it is used to generalize the characteristics of that research group to the whole

population. An example would be to say 80% of the sample of people in, for example Upington,

claim that their favourite food is boerewors. Therefore, the researchers conclude, 80% of all

people in Upington’s favourite food are boerewors.

For the research data to be generalized to everybody from the same group, the researchers have

to make sure that they ask enough people, and that they pick a few people from all the areas and

population groups. If the researchers only asked children, or men, or people from the area around

the airport, we could not say that ‘everybody’ in Upington loves boerewors! So researchers try to

use a “random sample” where everybody has an equal chance of being picked. The people they

ask are called the sample, and the whole group that this sample belongs to, is called the

population.

Making Sense of Data

We can count all data, whether categorical or quantitative, the

terms categorical and quantitative refer to the essence of the

individual items which we are counting.

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To make sense of all the data that they gather they may want to calculate

How many people gave a certain answer (for instance, 80% of people liked boerewors

most) – this is called the mode.

What the average is (e.g. the average birth weight of babies born in the Northern Cape)

– this is called the mean.

What the correlation is between two or more variables (e.g. whether there is a link

between performance at school and the ability to find a job; or between tallness and

fitness, etc).

Qualitative Research versus Quantitative Research

Qualitative Research Quantitative Research

Researcher is the data gathering

instrument.

Researcher uses tools, such as

questionnaires or equipment to collect

numerical data.

Data is in the form of words, pictures or

objects.

Data is in the form of numbers and

statistics.

Subjective – individuals’ interpretation of

events is important ,e.g., uses participant

observation, in-depth interviews etc.

Objective: seeks precise measurement &

analysis of target concepts, e.g., uses

surveys, questionnaires etc.

The Research Question

The first step in conducting any research is to formulate a research question.

A Research Question is a statement that identifies the phenomenon to be studied.

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The research will answer any question posed. It is therefore important that the research question

is formulated correctly and accurately.

Before a research question can be formulated, a topic must be identified. It is generally stressed

that the topic must be of the right size for the purpose—neither too large nor complex to be dealt

with properly in the time and space available, nor too small for anything much to be done with.

Once a topic has been identified and narrowed to the right size the research question can be

formulated.

There can be three basic types of questions that can be addressed by research projects. These

are:

Descriptive. This kind study is designed mainly to describe what is going on or what

already exists. Examples can include Public opinion polls seeking only to assess the

number of people who hold various opinions.

Relational. The purpose of this type of study is to look at the relationships between

various, two or more variables. For example: Does age have an influence on the amount of

health problems that a person encounters?

Causal. This is when a research study is designed to find out if one or more variables

causes or affects one or more variables depending on them. In other words, these

questions deal with the cause – effect relationship. It usually involves an experiment where

an independent variable is changed or manipulated to see how it affects the dependent

variable. For example: Will increasing the amount of professional development by teachers

increase learner development?

The research question is the purpose of a study summed up in one or two sentences. It is a

statement of what the researcher wants to discover. It can either be a general statement of a

specific hypothesis.

Often the title of a research study will be the research question. The topic sentence is a research

question summarized in one sentence of this form: "What is the effect of something on something

else?" Let's define the terms in the example.

"Something" - This is a variable. It is the variable that affects another variable.

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"Something Else" - This is another variable. It is the variable that is changed due to the

effects of the first variable.

"Effect" - This is the process that happens when one variable relates with another.

Here is an example of a Topic Sentence: "As a person gets older the amount of their body that is

muscle mass decreases."

Let's define the components:

"Something" - "a person gets older." The variable of "aging."

"Something Else" - "amount of their body that is muscle mass." The variable is the amount

of muscle.

"Effect" - "decreases." - The effect of aging on muscle mass is predicted.

A Topic Sentence can be a statement or a question.

It is important to be able to identify the research question. The other components of a study grow

from the research question in a logical manner. Once we have a clear research question, the

question leads to specific variables. The variables are the observable phenomena that can be

studied. A variable varies, that is it can be observed to change, or can take on different attributes.

Gender is a variable and it can take on two different attributes, male and female. Knowledge of the

variables allows us to understand the hypotheses of the study.

The hypothesis describes the predicted relationships between the variables.

The Hypothesis

What is a hypothesis?

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A hypothesis is a tentative statement that proposes a possible explanation to some phenomenon

or event.

A useful hypothesis is a testable statement which may include a prediction.

A hypothesis should not be confused with a theory.

Theories are general explanations based on a large amount of data. For example, the theory of

evolution applies to all living things and is based on wide range of observations. However, there

are many things about evolution that are not fully understood such as gaps in the fossil record.

Many hypotheses have been proposed and tested.

When are hypotheses used?

The key word is testable. That is, you will perform a test of how two variables might be related.

This is when you are doing a real experiment. You are testing variables.

Usually, a hypothesis is based on some previous observation such as noticing that in November

many trees undergo colour changes in their leaves and the average daily temperatures are

dropping. Are these two events connected? How?

How are hypotheses written?

Consider the following statements:

1. Temperature may cause leaves to change colour.

2. Ultra violet light may cause skin cancer.

All of these are examples of hypotheses because they use the tentative word "may.” However,

their form is not particularly useful.

Using the word may do not suggest how you would go about proving it.

If these statements had not been written carefully, they may not have even been hypotheses at all.

For example, if we say "Trees will change colour when it gets cold." we are making a prediction.

Or if we write, "Ultraviolet light causes skin cancer." could be a conclusion. One way to prevent

making such easy mistakes is to formalise the form of the hypothesis.

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Below are some examples of formalised hypotheses:

Notice that these statements contain the words, if and then.

They are necessary in a formalised hypothesis. But not all if-then statements are hypotheses. For

example, "If I play the lottery, then I will get rich." This is a simple prediction.

In a formalised hypothesis, a tentative relationship is stated. For example, if the frequency of

winning is related to frequency of buying lottery tickets. "Then" is followed by a prediction of what

will happen if you increase or decrease the frequency of buying lottery tickets. If you always ask

yourself that if one thing is related to another, then you should be able to test it.

Formalized hypotheses contain two variables. One is "independent" and the other is

"dependent." The independent variable is the one you, the "researcher" control and the

dependent variable is the one that you observe and/or measure the results.

Look at the following examples again:

1. If skin cancer is related to ultraviolet light, then people with a high exposure to UV light will

have a higher frequency of skin cancer.

In this example ultraviolet light can be controlled by the researcher and is therefore the

independent variable while skin cancer is the dependent variable.

2. If leaf colour change is related to temperature, then exposing plants to low temperatures will

result in changes in leaf colour.

1. If skin cancer is related to ultraviolet light, then people with a high

exposure to UV light will have a higher frequency of skin cancer.

2. If leaf colour change is related to temperature, then exposing plants to low

temperatures will result in changes in leaf colour.

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In the second example temperature is the independent variable and leaf colour change is the

dependent variable.

The ultimate value of a formalised hypothesis is it forces us to think about what results we should

look for in an experiment.

Testing the Hypothesis or Answering the Research Question

The researcher then carries out the research to answer the research question (or test the

hypothesis). Take note that the research is only valid if it addresses the research question.

Data Collection Methods

Appropriate methods for collecting, recording and organising data need to be used to maximise

efficiency and ensure the resolution of a problem or issue.

You can get Data from:

Your organisation’s archives – existing statistical data held on file.

Normal everyday operations of your company – the amount of items produced on a daily

basis, or the number of cars fixed in the workshop every day, for example.

Research – through questionnaires, surveys, etc.

Data base information such as – population details obtained from the population census.

The process of collecting accurate data is done through: interviews, questionnaires, and other

methods. Data collection in field settings can be done in a structured, systematic and scientific

way.

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Since questionnaires are one of the main ways of obtaining data, we will focus on how to go about

them.

Questionnaires should be short and simple.

Questions should be

clear and easy to understand

closed questions that require the person to answer ‘yes/no’

Example:

Are you currently employed? Yes / No

multiple choice questions where they get to choose an

answer

Example:

Example: Only people with university qualifications should get the

job.

Agree ____ Disagree _______ No Opinion _______

numerical rating scales where a person is asked to rate

something on a scale of e.g. ‘1-5’, or ‘never – always’, ‘poor

– excellent’

Example:

How would you rate your supervisor?

Excellent (5) Good (4) Average (3) Fair (2) Bad

(1)

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Advantages of Questionnaires

Low cost of posting mail questionnaires

The can be easily and quickly distributed

They can reach a large number of people

You do not have to write your name – so respondents can remain anonymous

You can eliminate prejudices and biases of an interviewer.

People can complete the questionnaire when it is convenient for them

Questionnaires save time for the interviewer and interviewee.

Disadvantages of Questionnaires

Not everyone who receives the questionnaire will bother to reply

People might not answer questions properly or leave some out.

Getting people to reply on time is difficult.

If the questionnaires are not designed properly they can be unreliable or invalid.

Questions that are clear to one person might be confusing to another.

Designing, testing and evaluating a questionnaire takes time.

Guidelines for Compiling a Questionnaire

Give your Questionnaire a title that states its purpose and that identifies you and your

organisation.

Provide clear instructions of what you want the respondent to do – tick, circle, choose and

answer, etc.

Make your questions clear and unambiguous, as well as quick and easy to answer. For

example, to find out how people travel to work, you could ask:

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Use statements which are interpreted in the same way by members of different

subpopulations of the population of interest.

Use statements where persons that have different opinions or traits will give different

answers.

Use only one aspect of the construct you are interested in per item.

Use positive statements and avoid negatives or double negatives.

Do not make assumptions about the respondent.

Use correct spelling, grammar and punctuation.

Avoid items that contain more than one question per item (e.g. Do you like strawberries and

potatoes?).

Questionnaire Administration Modes

Main modes of questionnaire administration are:

Face-to-face questionnaire administration, where an interviewer presents the items orally.

Paper-and-pencil questionnaire administration, where the items are presented on paper.

Computerized questionnaire administration, where the items are presented on the

computer.

Adaptive computerized questionnaire administration, where a selection of items is

presented on the computer, and based on the answers on those items, the computer

selects following items optimized for the testee's estimated ability or trait.

How do you get to work? Circle the form of transport: car / bus / taxi / train /

bicycle / motorbike / other (say which) ________________.

Rather than, a question like: How you drive to work? (Which is open-ended and

ambiguous.)

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Plan how you will score, calculate and evaluate your data. If you can, use a computer to tabulate

your data. Here are some suggestions for tallying your results

Recording Tallies on a Tally Sheet

Use stick figures in groups of four with the fifth stick crossing the fourth when you tally. For

example: IIII IIII IIII = 15

Please tell us what you think of our service by answering this questionnaire and posting it in the slotted box next to the notice board. Circle the number that describes how you view our service. 1 = bad, 3 = average, and 5 = excellent.

1. Our staff is friendly and helpful: 1 2 3 4 5

2. We clean the offices well: 1 2 3 4 5

3. Toilets are well cleaned: 1 2 3 4 5

4. We start and finish on time: 1 2 3 4

5

5. We do not disturb office workers: 1 2 3 4 5

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Look at the example of a Tally Sheet on the next page.

Research Report

Once the research is complete and the researcher knows the (probable) answer to the research

question, s/he will compile a research report in line with organisational requirements.

Data and information can be presented in various ways:

Multimedia presentations

Computer graphics

Ranking: Rate our Service.

1 2 3 4 5

Question 1: III IIII II

Question 2: IIII IIII IIII

Question 3: II III I I

Question 4: IIII III II

Question 5: II III I IIII III

12 8 9 9 18

To summarise the responses, you would add the tallies. The total

tally for each item provides the ranking order. The tally will also tell

you the total number of the respondents. In this example, there

were 46 respondents in total.

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The form of the presentation will be determined by:

The audience

The purpose of the presentation

Logistical issues such as space, time, materials and the requirements of the work

environment

Data Types

Before deciding how the data will be represented, it is important that there are different types of

data:

Discrete Data

A set of data is said to be discrete if the values belonging to it are distinct and separate, i.e. they

can be counted. Discrete data is more easily reportable as opposed to non-discrete or unstructured

data.

Examples might include the number of cattle in a herd; the number of patients in a hospital; the

number of flaws in one meter of cloth; gender (male, female); blood group (O, A, B, AB).

Categorical Data

Categorical data is also referred to as frequency or qualitative data. It is a form of discrete data.

Things are grouped according to some common property (ies) and the number of members of the

group are recorded (e.g., males/females, vehicle type).

Each value is chosen from a set of non-overlapping categories.

For example, shoes in a cupboard can be sorted according to colour; the characteristic 'colour' can

have non-overlapping categories 'black', 'brown', 'red' and 'other'. People have the characteristic of

'gender' with categories 'male' and 'female'.

Categories should be chosen carefully since a bad choice can prejudice the outcome of an

investigation. Every value should belong to one and only one category, and there should be no

doubt as to which one.

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Nominal Data

Nominal data are values that represent qualities rather than quantities and do so without any

reference to a linear scale (i.e. 'measurement' in terms of names or designations of discrete units

or categories).

Examples include telephone numbers, post codes, or soil types.

Scores on an interval scale can be added and subtracted but cannot be meaningfully multiplied or

divided.

Continuous Data

Data with a potentially infinite number of possible values along a continuum (e.g. age, height).

You can count, order and measure continuous data.

Frequency Table

A frequency table is a way of summarising a set of data. It is a record of how often each value (or

set of values) of the variable in question occurs. It may be enhanced by the addition of

percentages that fall into each category.

A frequency table is used to summarise categorical, nominal, and ordinal data. It may also be used

to summarise continuous data once the data set has been divided up into sensible groups.

A frequency table is constructed by arranging collected data values in ascending order of

magnitude with their corresponding frequencies.

For example, the time interval between the start of the years 1981

and 1982 is the same as that between 1983 and 1984, namely 365

days. The zero point, year 1 AD, is arbitrary; time did not begin

then.

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Suppose that in thirty shots at a target, a marksman makes the following scores:

5 2 2 3 4 4 3 2 0 3 0 3 2 1 5

1 3 1 5 5 2 4 0 0 4 5 4 4 5 5

The frequencies of the different scores can be summarised as:

Score Frequency Frequency (%)

0 4 13%

1 3 10%

2 5 17%

3 5 17%

4 6 20%

5 7 23%

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Formative assessment

Role play

Activity: 01

Instructions Explain how Situations or issues that can be dealt with through

statistical methods

Method Group Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

DEMONSTRATING

Marks 10

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Project

Group Activity: 02

Instructions Identify Variables contributing to a problem situation in data

gathering, e.g. crime is related to time of day and location

Method Group Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

Communicating

Marks 05

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Research PROJECT

Activity: 03

Instructions List Appropriate and efficient methods used to collect, record

and organise data

Method Individual Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

COLLECTING

Marks 10

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Summative assessment

Simulation

ACTIVITY 01

Instructions Data samples are of adequate size and are representative of

the population

CCFO

ORGANISING

Method Group Activity

Media Method Flipchart

Mark 10

Answer:

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Essay –Reflexive

Take some time to reflect on what you have learnt in this module and assess your

knowledge against the following pointers. Write down your answers. Should you not be

able to complete each of these statements, go back to your notes and check on your

understanding? You can also discuss the answers with a colleague.

Pose questions, collect and organise data

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Learning Unit 2:

At the end of this module learners will be able to:

Introduction

1. Graphical representations and numerical summaries are consistent with the data,

are clear and appropriate to the situation and target audience.

2. Different representations of aspects of the data are compared to take a position

on the issue.

3. Calculations and the use of statistics are correct and appropriate to the problem.

4. Interpretations of statistics are justified and applied to answer questions about the

problem.

5. New questions that arise from the modelling of the data are discussed.

Conclusion

Represent, analyse and interpret data using various techniques

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A table is both a mode of visual communication and also a means of arranging data. It should be

seen as a container that holds information about like items. For example, an Employees table

would contain the same basic details on each employee: name, title, department and so on.

A table consists of an ordered arrangement of rows and columns and usually organises numerical

information in a grid format. A table can, however also be used to display data in the form of

symbols or pictures.

In a data table:

The term row has several common synonyms (e.g., record, k-tuple, n-tuple, and vector).

The term column has several common synonyms (e.g., field, parameter, property,

attribute).

A column is usually identified by a name.

A column name can consist of a word, phrase or a numerical index.

A column is a set of data values of a particular simple type, one for each row of the table.

The columns provide the structure according to which the rows are composed.

The intersection of a row and a column is a cell.

The term field is often used interchangeably with column, although many consider it more correct

to use field (or field value) to refer specifically to the single item that exists at the intersection

between one row and one column (in one cell)

For example, a table that represents companies might have the following columns:

ID (integer identifier, unique to each row)

Name (text)

Address line 1 (text)

Address line 2 (text)

Columns are arrangements of cells in which are vertical.

Rows are arrangements of cells in which are horizontal.

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City (integer identifier, drawn from a separate table of cities, from which any state or

country information would be drawn)

Postal code (text)

Industry (integer identifier, drawn from a separate table of industries)

etc.

Each row would provide a data value for each column and would then be understood as a single

structured data value, in this case representing a company.

What is a histogram?

In statistics, a histogram is a graphical representation, showing a visual impression of the

distribution of experimental data. It is an estimate of the probability distribution of a continuous

variable.

The heights of the bars represent observed frequencies.

Histogram Use

Histograms are best used when there is large amount of data presented in a table. Histograms are

like a snapshot as opposed reflecting a process' performance over time.

A histogram makes it easy to see where the majority of values fall in a measurement scale, and

how much variation there is.

The Parts of a Histogram

Column 1 Column 2

Row 1 Row 1, Column 1 Row 1, Column 2 Row 2 Row 2, Column 1 Row 2, Column 2 Row 3 Row 3, Column 1 Row 3, Column 2

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A Histogram is made up of five parts:

Title: The title is a brief description of the information that is contained

in the Histogram.

Horizontal or X-Axis: The horizontal or X-axis indicates the scale of values into which

the measurements fit. These measurements are grouped into

intervals to help you summarize large data sets. Individual data

points are not displayed.

Bars: The bars have two important characteristics—height and width.

The height represents the number of times the values within an

interval occurred. The width represents the length of the interval

covered by the bar. It is the same for all bars.

Vertical or Y-Axis: The vertical or Y-axis is the scale that shows you the number of

times the values within an interval occurred. The number of times

is also referred to as "frequency."

Legend: Legend provides additional information that documents where

the data came from and how the measurements were gathered.

An example of a Histogram is given on the next page.Histograms are used to examine existing

patterns, identify the range of variables, and suggest a central tendency in variables.

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The Shape of the Distribution

Symmetry

A distribution of scores may be symmetrical or asymmetrical. Imagine constructing a histogram

centered on a piece of paper and folding the paper in half the long way. If the distribution is

symmetrical, the part of the histogram on the left side of the fold would be the mirror image of the

part on the right side of the fold.

A teacher grades tests and the results are as follows:

Data

Student Grade

Bullwinkle 84

Rocky 91

Bugs 75

Daffy 68

Wylie 98

Mickey 78

Minnie 77

Lucy 86

Linus 94

Asterix 64

Obelix 59

Donald 54

Sam 89

Taz 76

She then creates bins of width 10 points: . . . , 30-39, 40-49, 50-59,

60-69, 70-79, . . . . The number of test scores in each data bin is

recorded and plotted as a bar graph.

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If the distribution is asymmetrical, the two sides will not be mirror images of each other. A true

symmetric distribution is referred to as a normal distribution. Asymmetric distributions are more

commonly found.

Skewness

An asymmetric distribution can either be positively skewed or negatively skewed.

A distribution is said to be positively skewed if the scores tend to cluster toward the lower end of

the scale (that is, the smaller numbers) with increasingly fewer scores at the upper end of the scale

(that is, the larger numbers).

A negatively skewed distribution is exactly the opposite. With a negatively skewed distribution,

most of the scores tend to occur toward the upper end of the scale while increasingly fewer scores

occur toward the lower end.

Calculating Statistics

The Sample Mean

Add up all of the data points and divide by the number of data points.

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The sample mean is an estimator available for estimating the population mean (average). It is a

measure of location, commonly called the average, often symbolised

The value of the sample mean depends equally on all of the data which may include outliers. It

may not appear representative of the central region for skewed data sets. It is especially useful as

being representative of the whole sample for use in subsequent calculations.

The Median

The Median is the middle number (in a sorted list of numbers). Half the numbers in the list are less,

and half the numbers are greater.

To find the Median, place the numbers you are given in value order and find the middle number.

What is the mean of 2, 7 and 9?

Add the numbers: 2 + 7 + 9 = 18

Divide by how many numbers (i.e. we added 3 numbers): 18 ÷ 3 =

6

So the Mean is 6

Let’s say our data set is: 5 3 54 93 83 22

17 19.

Find the Median of {12, 3 and 5}. Put them in order: {3, 5, 12}, the

middle number is 5, so the median is 5.

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If there are two middle numbers (as happens when there are an even amount of numbers) then

average those two numbers.

With an odd number of data values, for example 21, we have:

Data 96 48 27 72 39 70 7 68 99 36 95 4 6 13 34 74 65 42 28 54 69

Ordered Data 4 6 7 13 27 28 34 36 39 42 48 54 65 68 69 70 72 74 95 96 99

Median 48, leaving 10 values below and 10 values above

With an even number of data values, for example 20, we have:

Data 57 55 85 24 33 49 94 2 8 51 71 30 91 6 47 50 65 43 41 7

Ordered Data 2 6 7 8 24 30 33 41 43 47 49 50 51 55 57 65 71 85 91 94

Median Halfway between the two 'middle' data points - in this case

halfway between 47 and 49 = 48

It is generally a good descriptive measure of the location which works well for skewed data or data

with outliers.

The Mode

The mode is the number that appears most often in a set of numbers.

Find the Median of {12, 3, 5 and 2}. Put them in order: {2, 3, 5, 12},

the middle numbers are 3 and 5, the average of 3 and 5 is 4, so the

median is 4.

In {6, 3, 9, 6, 6, 5, 9, 3} the Mode is 6 (it occurs most often).

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Suppose the results of an end of term Statistics exam were distributed as follows:

Student Score

1 94

2 81

3 56

4 90

5 70

6 65

7 90

8 90

9 30

Then the mode (most common score) is 90, and the median (middle score) is 81.

Dispersion

The data values in a sample are not all the same. This variation between values is called

dispersion.

Common examples of measures of statistical dispersion are the variance, standard deviation and

interquartile range. These measures indicate to what degree the individual observations of a data

set are dispersed or 'spread out' around their mean (average).

The Range

Range is the difference between the lowest and highest values.

In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9, so the

range is 9-3. Equals 6.

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The range of a sample (or a data set) is a measure of the spread or the dispersion of the

observations. It is the difference between the largest and the smallest observed value of some

quantitative characteristic and is very easy to calculate.

A great deal of information is ignored when computing the range since only the largest and the

smallest data values are considered; the remaining data are ignored.

The range value of a data set is greatly influenced by the presence of just one unusually large or

small value in the sample (outlier).

Inter-Quartile Range (IQR)

It is the highest number and the lowest number in a set of numbers.

The inter-quartile range is a measure of the spread of or dispersion within a data set.

It is calculated by taking the difference between the upper and the lower quartiles.

An outlier is an extreme deviation from the mean.

The range of 65,73,89,56,73,52,47 is: 89 - 47 = 42.

If the highest score in a 1st Year Statistics Exam was 98 and the lowest 48, then

the range would be 98 - 48 = 50.

7, 5, 1, 8, 5, 5, 7, 2, 7, 9.

Range: 1 – 9

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Quartile and Percentile

Percentiles are values that divide a sample of data into one hundred groups containing (as far as

possible) equal numbers of observations.

For example, 30% of the data values lie below the 30th percentile.

Quartiles are values that divide a sample of data into four groups containing (as far as possible)

equal numbers of observations.

A data set has three quartiles. References to quartiles often relate to just the outer two, the upper

and the lower quartiles; the second quartile being equal to the median.

Data 2 3 4 5 6 6 6 7 7 8 9

Upper quartile 7

Lower quartile 4

IQR 7 - 4 = 3

Data 6 47 49 15 43 41 7 39 43 41 36

Ordered Data 6 7 15 36 39 41 41 43 43 47

Median 41

Upper quartile 43

Lower quartile 15

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Sample Variance

Sample variance is a measure of the spread of or dispersion within a set of sample data.

The sample variance is the sum of the squared deviations from their average divided by one less

than the number of observations in the data set.

To calculate the variance, follow these steps:

Work out the Mean (the simple average of the numbers)

Then for each number: subtract the Mean and then square the result (the squared

difference).

Then work out the average of those squared differences.

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Standard Deviation

Standard deviation is a measure of the spread or dispersion of a set of data. The more widely the

values are spread out, the larger the standard deviation. The Standard Deviation is just the square

root of Variance, so:

Standard Deviation: σ = √21,704 = 147

The good thing about the Standard Deviation is that it is useful. Now we can show which heights

are within one Standard Deviation (147mm) of the Mean.

You and your friends have just measured the heights of your dogs

(in millimeters):

The heights (at the shoulders) are: 600mm, 470mm, 170mm, 430mm and

300mm.

Find out the Mean, the Variance, and the Standard Deviation.

Step 1: Calculate the mean

Mean = 600 + 470 + 170 + 430 + 300

= 1970

= 394

5 5

so the mean (average) height is 394 mm.

Step 2: Calculate the Variance

To calculate the Variance, take each difference, square it, and then average the

result:

σ2 =

2062 + 762 + (-224)2 + 362 + (-94)2 =

108,520 = 21,704

5 5

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Using the Standard Deviation we have a "standard" way of knowing what is normal, and what is

extra large or extra small.

Why square?

Squaring each difference makes them all positive numbers (to avoid negatives reducing the

Variance)

And it also makes the bigger differences stand out. For example 1002=10,000 is a lot bigger than

502=2,500.

But squaring them makes the final answer really big, and so un-squaring the Variance (by taking

the square root) makes the Standard Deviation a much more useful number.

Coefficient of Variation

The coefficient of variation measures the spread of a set of data as a proportion of its mean. It is

often expressed as a percentage.

The coefficient of variation (CV) is defined as the ratio of the standard deviation to the mean :

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The coefficient of variation is useful because the standard deviation of data must always be

understood in the context of the mean of the data. The coefficient of variation is a dimensionless

number. So when comparing between data sets with different units or widely different means, one

should use the coefficient of variation for comparison instead of the standard deviation.

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Formative assessment

Role play

Activity: 04

Instructions Graphical representations and numerical summaries are

consistent with the data, are clear and appropriate to the

situation and target audience

Method Group Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

DEMONSTRATING

Marks 10

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Project

Group Activity: 05

Instructions Different representations of aspects of the data are compared

to take a position on the issue

Method Group Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

Communicating

Marks 05

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Research PROJECT

Activity: 06

Instructions Calculations and the use of statistics are correct and

appropriate to the problem

Method Individual Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

COLLECTING

Marks 10

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Summative assessment

Simulation

ACTIVITY 02

Instructions Interpretations of statistics are justified and applied to answer

questions about the problem

CCFO

ORGANISING

Method Group Activity

Media Method Flipchart

Mark 10

Answer:

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Essay –Reflexive

Take some time to reflect on what you have learnt in this module and assess your

knowledge against the following pointers. Write down your answers. Should you not be

able to complete each of these statements, go back to your notes and check on your

understanding? You can also discuss the answers with a colleague.

Represent, analyse and interpret data using various techniques

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Learning Unit 3:

At the end of this module learners will be able to:

Introduction

1. Data are gathered, organised, sorted and classified in a suitable manner for

further processing and analysis.

2. Experiments and simulations are chosen appropriately in terms of the situation to

be investigated.

3. Probabilities are determined correctly.

4. Distinctions are correctly made between theoretical and experimental

probabilities.

5. Predictions are based on validated experimental or theoretical probabilities.

6. The outcomes of experiments and simulations are communicated clearly.

Use random events to explore and apply,

probability concepts in simple life

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Conclusion

Geometrical Symmetry

The most familiar type of symmetry for many people is geometrical symmetry.

There are 4 types of geometrical symmetry in figures are,

Reflection symmetry

Rotation symmetry

Translation symmetry

Glide reflection symmetry

These will be discussed in more detail later on.

The Properties of Plane Shapes

A plane shape is a two-dimensional shape that has width and breadth, but no thickness.

A symmetrical shape is one that has similarity in size, shape, and

relative position of corresponding parts

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The Perimeter

To find the perimeter of a rectangle, just add up all the lengths of the sides:

Perimeter = L + w + L + w

= 2L + 2w

The Area

To find the area of a rectangle, just multiply the length times the width:

Area = L x w

The Properties of a Parallelogram

A parallelogram is a quadrilateral that has two pairs of parallel sides.

The perimeter is the total distance around the outside of a shape

Area is defined as the number of square units that covers a closed figure.

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The Perimeter

In the case of a parallelogram, each pair of opposite sides is the same length, so the perimeter is

twice the base plus twice the side length. Or as a formula:

perimeter = 2(a+b)

where:

b is the base length of the parallelogram

a is the side length

The Area

Area = b × h

b = base

h = vertical height

The Properties of a Circle

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The Perimeter

𝑃 = 2𝜋𝑟

The Area

𝐴 = 𝜋𝑟2

The Properties of a Trapesium

The Perimeter

Perimeter of Trapesium = a + b + c + d

where

a, b, c, d = sides

The Area

Area = ½(a+b) × h

h = vertical height

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Pythagoras Theorem

"Pythagoras' Theorem" and can be written in one short equation:

a2 + b2 = c2

Note:

c is the longest side of the triangle

a and b are the other two sides

If the triangle had a right angle (90°) and you made a square on

each of the three sides, then the biggest square had the exact

same area as the other two squares put together.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 64

Formative assessment

Role play

Activity: 07

Instructions Data are gathered, organised, sorted and classified in a

suitable manner for further processing and analysis

Method Group Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

DEMONSTRATING

Marks 10

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9012 Investigate life and work related problems using data and probabilities Learner Guide 65

Project

Group Activity: 08

Instructions Experiments and simulations are chosen appropriately in terms

of the situation to be investigated

Method Group Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

Communicating

Marks 05

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9012 Investigate life and work related problems using data and probabilities Learner Guide 66

Research PROJECT

Activity: 09

Instructions Probabilities are determined correctly

Method Individual Activity

Media Method Flipchart

Answers:

Critical Cross Field

Orgaisation

COLLECTING

Marks 10

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9012 Investigate life and work related problems using data and probabilities Learner Guide 67

Summative assessment

Simulation

ACTIVITY 03

Instructions Distinctions are correctly made between theoretical and

experimental probabilities

CCFO

ORGANISING

Method Group Activity

Media Method Flipchart

Mark 10

Answer:

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9012 Investigate life and work related problems using data and probabilities Learner Guide 68

Essay –Reflexive

Take some time to reflect on what you have learnt in this module and assess your

knowledge against the following pointers. Write down your answers. Should you not be

able to complete each of these statements, go back to your notes and check on your

understanding? You can also discuss the answers with a colleague.

Use random events to explore and apply, probability concepts in simple life.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 69

Annexure 1: Growth Action Plan The personal development plan will enable you address any areas of weakness that you identify during the course and stimulate your desire for personal growth. Growth Action Plan

I have identified the following as areas in which I need to improve in order to become competent. List in order of priority.

Actions to be taken

Resources Completion date Evidence

Learner Name: Learner Signature: Facilitator Name: Facilitator Signature:

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9012 Investigate life and work related problems using data and probabilities Learner Guide 70

Annexure 2: Words that are new to me Compile a list of words that is new to you and discuss the meaning of the words with your facilitator.

Term

Description

e.g. characteristic

Trait, feature, quality, attribute, etc

Learner Name: Learner Signature: Facilitator Name: Facilitator Signature:

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9012 Investigate life and work related problems using data and probabilities Learner Guide 71

Annexure 3: Training Evaluation

Training Program

Facilitator Name

Date

Ratings:

1 Poor 2 Areas for Improvement 3 Meet the standard requirements 4 Very Good 5 Excellent

Tick where appropriate:

Did the training relate to your job e.g. skills, knowledge? 1 2 3 4 5

Comments:

To what extent will your performance improve as a result of attending this training

1 2 3 4 5

Comments:

To what extent would you recommend this course to others? 1 2 3 4 5

Comments:

Did this training meet your desired needs? 1 2 3 4 5

Comments:

Was the training material user friendly / easy to understand? 1 2 3 4 5

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9012 Investigate life and work related problems using data and probabilities Learner Guide 72

Annexure 4: Evaluation of Facilitator Ratings:

1 Poor 2 Areas for Improvement 3 Meet the standard requirements 4 Very Good 5 Excellent

Tick where appropriate:

1 2 3 4 5 Preparation for the training

Knowledge of subject

Handling of questions

Interaction with participants

Voice clarity

Use of training aids (flip charts, handouts, etc)

Facilitator made training exciting

Recommendation of facilitator for future training

Other comments on Facilitator’s delivery of his training

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9012 Investigate life and work related problems using data and probabilities Learner Guide 73

2. Bibliography

Acknowledgements & Reference The following web-sites have been used for research:

Supplier

Yellow Media Publishers

Senior learning material Developer:

Ms Duduzile Zwane

www.yellowmedia.co.za

[email protected]

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9012 Investigate life and work related problems using data and probabilities Learner Guide 74

SECTION C: SELF REFLECTION

I enjoyed/did not enjoy this module because:

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

I enjoyed/did not enjoy this module because:

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

I found group work ___________________________________!!!

The most interesting thing I learnt was:

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

I feel I have gained the necessary skills and knowledge to:

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

______________________________________________________________

______________________________________________________________

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9012 Investigate life and work related problems using data and probabilities Learner Guide 75

Please add the following to this module:

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

Some comments from my classmates about my participation in class:

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

____________________________________________________________

_____________________________________________________________

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9012 Investigate life and work related problems using data and probabilities Learner Guide 76

Self-Assessment

Self-Assessment:

You have come to the end of this module – please take the time to review what you have learnt to date, and conduct a self-assessment against the learning outcomes of this module by following the instructions below:

Rate your understanding of each of the outcomes listed below: Keys: - no understanding - Some idea - Completely comfortable

NO OUTCOME

SELF RATING

1. Pose questions, collect and organise data.

2. Represent, analyse and interpret data using various techniques

3. Use random events to explore and apply, probability concepts in simple life.

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9012 Investigate life and work related problems using data and probabilities Learner Guide 77

Learner Evaluation Form

Learning Programme Name

Facilitator Name

Learner name (Optional)

Dates of Facilitation

Employer / Work site

Date of Evaluation

Learner Tip:

Please complete the Evaluation Form as thoroughly as you are able to, in order for us to continuously improve our training quality! The purpose of the Evaluation Form is to evaluate the following:

logistics and support

facilitation

training material

assessment Your honest and detailed input is therefore of great value to us, and we appreciate your assistance in completing this evaluation form!

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9012 Investigate life and work related problems using data and probabilities Learner Guide 78

A Logistics and Support Evaluation

No Criteria / Question

Po

or

Belo

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tan

da

rd

Su

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t

Ab

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Exc

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t

1 Was communication regarding attendance of the programme efficient and effective?

2 Was the Programme Coordinator helpful and efficient?

3 Was the training equipment and material used effective and prepared?

4 Was the training venue conducive to learning (set-up for convenience of learners, comfortable in terms of temperature, etc.)?

Additional Comments on Logistics and Support

No Criteria / Question P

oo

r

Belo

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tan

da

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Su

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Ab

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Exc

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B Facilitator Evaluation 1 The Facilitator was prepared and knowledgeable on the

subject of the programme

2 The Facilitator encouraged learner participation and input

3 The Facilitator made use of a variety of methods, exercises, activities and discussions

4 The Facilitator used the material in a structured and effective manner

5 The Facilitator was understandable, approachable and respectful of the learners

6 The Facilitator was punctual and kept to the schedule

Additional Comments on Facilitation

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9012 Investigate life and work related problems using data and probabilities Learner Guide 79

No Criteria / Question

Po

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Sta

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Su

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Ab

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1 2 3 4 5

C Learning Programme Evaluation 1 The learning outcomes of the programme are

relevant and suitable.

2 The content of the programme was relevant and suitable for the target group.

3 The length of the facilitation was suitable for the programme.

4 The learning material assisted in learning new knowledge and skills to apply in a practical manner.

5 The Learning Material was free from spelling and grammar errors

6 Handouts and Exercises are clear, concise and relevant to the outcomes and content.

7 Learning material is generally of a high standard, and user friendly

Additional Comments on Learning Programme

D Assessment Evaluation

No Criteria / Question

Po

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Sta

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S

uff

icie

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Ab

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Sta

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1 2 3 4 5 1 A clear overview provided of the assessment

requirements of the programme was provided

2 The assessment process and time lines were clearly explained

3 All assessment activities and activities were discussed

Additional Comments on Assessment