# Calculate the Probability of Picking a Particular Colour

In this worksheet, students will calculate the probability of choosing a certain colour.

Key stage:  KS 3

Curriculum topic:   Probability

Curriculum subtopic:   Understand Probability Outcomes

Popular topics:   Probability worksheets

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 coloured cards.

What is the probability of selecting a yellow card at random?

There are 4 options that we are looking for. This is the four yellow cards.

There are 6 possible combinations.

The probability of choosing a yellow card is 4/6 which reduces to 2/3.

Let's have a go at some questions now.

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