Key learning points

1. The probability of an outcome can be found by considering a Venn diagram showing all possible outcomes.
2. The probability of a set of outcomes can be found by considering a Venn diagram showing all possible outcomes.
3. A Venn diagram can help us find a probability, even when the outcomes are not equally likely.

Keywords

• Venn diagram - Venn diagrams are a representation used to model statistical/probability questions. Commonly circles are used to represent events.

• Theoretical probability - A theoretical probability is a probability based on counting the number of desired outcomes from a sample space where all individual outcomes are equally likely.

Common misconception