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GCSE Mathematics · key term
The complete set of all possible outcomes of an experiment.
Used by AQA and Edexcel
Specification P7 · Paper 1, Paper 2, Paper 3
Revise: Possibility SpacesA table or grid is an efficient way to construct the complete possibility space. Put the outcomes of the first experiment along one edge and those of the second experiment along the other. Each cell then represents one ordered pair.
Specification P7 · Paper 1, Paper 2, Paper 3
A systematic list or diagram showing all possible outcomes of an experiment; for two experiments it is often drawn as a two-way table.
Revise: Possibility SpacesThe complete collection of outcomes is the sample space, also called a possibility space.
Check that your possibility space is exhaustive: every possible outcome must appear once.
Only use favourable outcomes divided by total outcomes when the elementary outcomes in the possibility space are equally likely.
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