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Probability of Picking Numbers (2)

In this worksheet, students calculate the probability of choosing or not choosing certain numbers.

'Probability of Picking Numbers (2)' worksheet

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Probability

Difficulty level:  

Worksheet Overview

Probability is written as a fraction.

On the top (numerator) of the fraction, we place the number of options we are looking for.

On the bottom (denominator) of the fraction, we place the total number of possible combinations.

 

Example

Look at these number cards.

 

What is the probability of selecting a number which is either greater than 8 or even?

 

Answer

There are 8 options that "we are looking for" (these are 2, 4, 6 and 8 and 9, 10, 11 and 12)

There are 12 "possible combinations".

 

The probability is 8/12 which reduces to 2/3

 

 

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