discrete random variable
What discrete random variable means in Mathematics A-Level, as defined for Pearson Edexcel, WJEC.
Definitions of discrete random variable
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Reference: WJEC
Takes countable numerical outcomes with specified probabilities, defined via a table or formula P(X = x).
A random variable that can take distinct, separate values, usually whole-number counts.
A random variable that can take a finite or countable set of distinct values.
Topics that use discrete random variable
- Statistical distributions (Pearson Edexcel A-Level)
- Statistical distributions (AS Unit 2: Applied Mathematics A) (WJEC A-Level)
Related terms
- discrete uniform distribution
- Binomial distribution
- binomial distribution model
- binomial versus Poisson
- compound events
- continuity correction
- Cumulative probability
- distribution selection
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