### Key Stage 3 Maths - Lesson Objectives, Keywords and Resources - Year 8 - Handling Data

# Probability Scales

## Lesson Objectives

To know that:

- If the probability of an event occurring is
*p*, then the probability of it not occurring is*1 - p*. - The sum of the probabilities of all mutually exclusive outcomes is 1.

## Keywords:

Probability, event, outcome

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