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GCSE Mathematics · key term
A set of outcomes or events that covers every possible result of a trial.
Used by AQA
Specification P4, P7 · Paper 1, Paper 2, Paper 3
Revise: Sum of ProbabilitiesA list that includes every possible outcome is exhaustive.
A possibility space containing every possible outcome and omitting none.
Mutually exclusive does not mean exhaustive: two events can be unable to happen together while leaving other outcomes unaccounted for.
Check that your possibility space is exhaustive: every possible outcome must appear once.
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