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An Education Quiz Template
Created by Ryan Mayers ([email protected])
Adapted by Roger Cookson ([email protected]
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© 2006 by Mr. Mayers
Representing Data
Mean and SD
Probability
Name
that filmBinomial
Correl and Reg
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800 1,100 600 900
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Representing Data - 100 Points
What is the midpoint for the 20-29 group?
Answer = 24.5
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Representing Data - 200 Points
In which group does the median lie?
Answer = Median between 60th and 61st so in 90-94
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Representing Data - 300 Points
What are the median, lower quartile and upper quartile for this data?
Answer = Med 68 LQ 43.5 UQ 83.5
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Representing Data - 400 Points
Describe, in context, this correlation
Answer = Strong negative correlation between Grade Point Average and Hours of video games
played.
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Representing Data - 500 PointsWhat are the key advantages and disadvantages of median and IQR above Mean and Standard Deviation.
Answer Advantage: Not effected by extreme data values
Disadvantage: are not calculated based on every data value
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Mean and SD - 100 PointsFind the mean and standard deviation of this data.
Answer = Mean: 98 SD: 5.95
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Mean and SD - 200 Points
Find the mean and standard deviation of this data
Answer = Mean:180.25 SD: 7.52
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Mean and SD - 300 Points
Find the mean and standard deviation of y
Answer Mean = 104 and SD = 36.5
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Mean and SD - 400 Points
Find the mean and Standard Deviation of this data
Answer Mean = 15.05 and SD = 5.70
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Mean and SD - 500 Points
If 5 potatoes are selected from this batch that have weights 250, 245, 230, 252 and 233 what are the new mean and standard deviation
Answer Mean = 233.111 and SD = 26.14
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Probability - 100 PointsTwo people from a group of 10 are
selected at random. 3 of the group are female.
What is the probability two males are picked?
Answer (7x6)/(10x9) = 42/90
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Probability - 200 Points
What is the probability that none of them go cycling?
Answer 0.024
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Probability - 300 Points
What is the probability she wins the point?
Answer 0.68
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Probability - 400 PointsThe letters of the word seven are printed on
cards. The cards are mixed and the first three turned over what is the probability the word
see is spelled out?
Answer: (1x2x1)/(5x4x3) = 2/60 = 1/30
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Probability - 500 Points
Answer P(AZ’)= 520/700 P(B|X)=75/155
A: Event student is female B: Event student is Male Find: P(AZ’)X: Event Year 10 Student and P(B|X)Y: Event Year 11 StudentZ: Event Year 12 student
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Name that film - 100 Points
Cars
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Name that film - 200 Points
Lord of the Rings: The Fellowship of the Ring
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Name that film - 300 Points
Dogma
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Name that film - 400 Points
What’s Eating Gilbert Grape?
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Name that film - 500 Points
The Big Lebowski
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Binomial - 100 Points
If X~B(12, 0.4)
What are the mean and Variance of X?
Answer = Mean 4.8 Var 2.88
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Binomial - 200 Points
If X~B(5,0.22) what is P(X=3)?
Answer = 0.0648
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Binomial - 300 PointsI estimate after a period of catching the bus that the probability it is more than 5 minutes late is 0.3.What assumptions must be made to use B(7,0.3) to model the number of times the bus is over 5 mins late in a week?
Answer Each day has same probability and is independent of
previous day.
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Binomial - 400 Points
Each day Oli plays on a fruit machine. The probability he wins is 10%.What is the probability that in 4 weeks he wins at least 5 times?
Answer 0.1422
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Binomial - 500 Points
Answer = i) 0.04327 ii) 0.4396
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Correlation - 100 Points
Which is the most likely value of r for this diagram A r=0.121B r=0.854C r=-0.984
0.854
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Correlation and Reg - 200 Points
r=-0.525 very weak negative correlation (slight indication length
increases diameter decreases)
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Correlation and Reg- 300 Points
rs = -0.0238
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Correlation and Reg - 400 Points
Find the y on x regression line equation and explain why, if a value for x were to be estimated from y the
x on y equation is probably unsuitable.
y=5.95-0.0873x; time taken to dissolve not controlling initial
temperature
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Correlation and Reg - 500 Points
For this summarised data find the y on x regression equation
y=14.3+0.802x
