Key learning points

1. Knowledge of probability can be applied to real world situations .
2. Probabilities can be used to aid decision making.
3. Theoretical probabilities come from long-term behaviour and therefore may not be seen in the short-term.

Keywords

• Sample space - A sample space is all the possible outcomes of a trial. A sample space diagram is a systematic way of producing a sample space.

• Tree diagram - Tree diagrams are a representation used to model statistical/probability questions. Branches represent different possible events or outcomes.

• Outcome table - An outcome table is a table that shows all the possible outcomes.

Common misconception