Mathematics A-Level
total probability axiom
What total probability axiom means in Mathematics A-Level, as defined for WJEC.
Definition of total probability axiom
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Reference: WJEC
Across the support, Σ P(X = x) = 1, alongside 0 ≤ P(X = x) ≤ 1 for every outcome x.
Topics that use total probability axiom
- Statistical distributions (AS Unit 2: Applied Mathematics A) (WJEC A-Level)
Related terms
- binomial distribution model
- binomial versus Poisson
- compound events
- discrete random variable
- discrete uniform distribution
- distribution selection
- model critique
- Poisson distribution model
Using total probability axiom in the exam
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