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Outcomes and Probability (2)

In this worksheet, students determine the possible outcomes of two events.

'Outcomes and Probability (2)' worksheet

Key stage:  KS 3

Curriculum topic:   Probability

Curriculum subtopic:   Calculate Theoretical Probability

Difficulty level:  

Worksheet Overview

When two events occur, there are several possible outcomes.

For example, when a coin is thrown, it can land heads up (H) or tails up (T) and when a die is thrown it can land showing a 1, 2, 3, 4, 5 or 6.




So when they are both thrown, the possible outcomes are:


H   1

H   2

H   3

H   4


H   6


T   2


T   4


T   6



There are 12 possible outcomes.

So the probability of getting a head and a 6, P(H6) = 1/12


Make carefully organised, systematic lists when determining all the outcomes.  

Do not just write out the outcomes randomly.



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