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  1. 11+
  2. Year 5
  3. probability
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Probability Predictions

In this worksheet, students use probability to predict how often an event is likely to happen.

'Probability Predictions' worksheet

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Probability

Difficulty level:  

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Worksheet Overview

QUESTION 1 of 10

Probability is written as a fraction and can be used to predict the number of times an event will happen when an experiment is carried out a large number of times.

 

Example

 

The probability of throwing Tails on a coin is 1/2.

If we throw the coin 1200 times, we can predict that there will be roughly 1/2 x 1200 = 600 Tails..

 

Example

The probability of throwing a 4 or 5 on a die is 1/3.

In 600 throws, we can predict that there will be roughly 1/3 x 600 = 200 fours or fives thrown.

 

If we throw this fair coin 1000 times, roughly predict how many times you would expect to get Tails.

 

 

If we throw this fair coin 5000 times, roughly predict how many times you would expect to get Heads.

 

If we throw this fair die 6000 times, roughly predict how many times you would expect to get a six.

 

If we throw this fair die 6000 times, roughly predict how many times you would expect to get a one.

 

If we throw this fair die 6000 times, roughly predict how many times you would expect to get an even number.

 

If we throw this fair die 6000 times, roughly predict how many times you would expect to get a ten.

 

If we spin this fair spinner 800 times, roughly predict how many times you would expect it to land on green.

 

If we spin this fair spinner 800 times, roughly predict how many times you would expect it to land on yellow.

 

If we spin this fair spinner 1600 times, roughly predict how many times you would expect it to land on yellow.

 

If we spin this fair spinner 2400 times, roughly predict how many times you would expect it to land on green.

  • ANSWERS
  • Question 1

 

If we throw this fair coin 1000 times, roughly predict how many times you would expect to get Tails.

 

CORRECT ANSWER
500
EDDIE SAYS

P(tails) = 1/2

1/2 x 100

  • ANSWERS
  • Question 2

 

If we throw this fair coin 5000 times, roughly predict how many times you would expect to get Heads.

CORRECT ANSWER
2500
EDDIE SAYS

P(heads) = 1/2

1/2 x 5000

  • ANSWERS
  • Question 3

 

If we throw this fair die 6000 times, roughly predict how many times you would expect to get a six.

CORRECT ANSWER
1000
EDDIE SAYS

P(six) = 1/6

1/6 x 6000

  • ANSWERS
  • Question 4

 

If we throw this fair die 6000 times, roughly predict how many times you would expect to get a one.

CORRECT ANSWER
1000
EDDIE SAYS

P(one) = 1/6

1/6 x 6000

  • ANSWERS
  • Question 5

 

If we throw this fair die 6000 times, roughly predict how many times you would expect to get an even number.

CORRECT ANSWER
3000
EDDIE SAYS

P(even) = 3/6 = 1/2

1/2 x 6000

  • ANSWERS
  • Question 6

 

If we throw this fair die 6000 times, roughly predict how many times you would expect to get a ten.

CORRECT ANSWER
0
EDDIE SAYS

P(ten) = 0/6

0 x 6000

  • ANSWERS
  • Question 7

 

If we spin this fair spinner 800 times, roughly predict how many times you would expect it to land on green.

CORRECT ANSWER
200
EDDIE SAYS

P(green) = 2/8 = 1/4

1/4 x 800

  • ANSWERS
  • Question 8

 

If we spin this fair spinner 800 times, roughly predict how many times you would expect it to land on yellow.

CORRECT ANSWER
300
EDDIE SAYS

P(yellow) = 3/8

3/8 x 800

  • ANSWERS
  • Question 9

 

If we spin this fair spinner 1600 times, roughly predict how many times you would expect it to land on yellow.

CORRECT ANSWER
600
EDDIE SAYS

P(yellow) = 3/8

3/8 x 1600

  • ANSWERS
  • Question 10

 

If we spin this fair spinner 2400 times, roughly predict how many times you would expect it to land on green.

CORRECT ANSWER
600
EDDIE SAYS

P(green) = 2/8 = 1/4

1/4 x 2400

---- OR ----

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