Topic 48Mathematics (Edexcel)
Discrete Random Variables
Discrete Random Variables — Edexcel International A-Level Mathematics (Unit 8 / Statistics 1 (S1)). Covers: Probability Distributions; The Discrete Uniform Distribution.
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Probability DistributionsSign up
understand the concept of a discrete random variable, its probability distribution and the requirement that probabilities sum to 1 · be able to calculate the expectation E(X), variance Var(X) and standard deviation of a discrete random variable, including E(aX + b) and Var(aX + b)
40 min
The Discrete Uniform DistributionSign up
understand and use the discrete uniform distribution as a model, and find its expectation and variance
40 min