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What is the probability of the arrow landing on a 3 ?. 2. 0. 3. 2. 1. 1. 3. =. 6. 3. 0. What is the probability of the arrow landing on a 1 ?. 2. 0. 3. 1. 1. 3. 6. 0. A bag contains 6 red, 3 blue and 1 yellow ball. - PowerPoint PPT Presentation
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Probability
@lhmaths: Lesley Hall
3
0
02
3 1
What is the probability of the arrow landing on a
3?
26
13
=
Probability
@lhmaths: Lesley Hall
3
0
02
3 1
What is the probability of the arrow landing on a
1?
16
Probability
@lhmaths: Lesley Hall
Which arrow on the scale represents the probability of choosing a blue ball?
A bag contains 6 red, 3 blue and 1 yellow ball.
A B C D EC
Probability
@lhmaths: Lesley Hall
Which arrow on the scale represents the probability of choosing a red ball?
A bag contains 6 red, 3 blue and 1 yellow ball.
A B C D ED
Probability
@lhmaths: Lesley Hall
Which arrow on the scale represents the probability of choosing a pink ball?
A bag contains 6 red, 3 blue and 1 yellow ball.
A B C D EA
Probability
@lhmaths: Lesley Hall
What is the probability that she will not jump?
The probability that Julie will jump is 0.2.
0.81 – 0.2 = 0.8
Probability
@lhmaths: Lesley Hall
A biased dice is rolled. The probability of it landing on each side is shown in the table.
Number 1 2 3 4 5 6
Probability 0.05 0.2 0.05 0.1 0.5
What is the probability of rolling a 4?
0.10.05 + 0.2 + 0.05 + 0.1 + 0.5 = 0.9
1 – 0.9 = 0.1
Probability
@lhmaths: Lesley Hall
A biased dice is rolled. The probability of it landing on each side is shown in the table.
Number 1 2 3 4 5 6
Probability 0.05 0.2 0.05 0.1 0.1 0.5
How can you tell that the dice is biased?
There is not an equal chance of each number being rolled.
Probability
@lhmaths: Lesley Hall
This is a fair dice.
If I roll it 600 times, how often would I expect it to land on the number 1.
100
Probability
@lhmaths: Lesley Hall
Sam spun a spinner 100 times, and recorded which colour the spinner landed on. Here are his
results.Colour blue green red yellow
Frequency 20 28 27 25
What is the relative frequency of the spinner landing on green?
28100
Probability
@lhmaths: Lesley Hall
Sam spun a spinner 100 times, and recorded which colour the spinner landed on. Here are his
results.Colour blue green red yellow
Frequency 20 28 27 25
Draw the spinner.
