  # What is the Probability?: Mixed Questions

In this worksheet, students answer mixed questions on probability. Key stage:  KS 3

Curriculum topic:   Probability

Curriculum subtopic:   Calculate Theoretical Probability

Difficulty level:   #### Worksheet Overview

Remember that lists of possible outcomes, tables and tree diagrams are all useful ways to help you work out probabilities.

A probability is given as a fraction or a decimal.

The probability of something not happening = 1 - the probability of it happening.

You should also know when to add probabilities and when to multiply them.

Relative frequency can be used to estimate an experimental probability. ### What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started 