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Enrich · Mathematics Advanced 11–12 – Year 12 · Random variables

Enrich Generate and use the formulas E(X) = μ = ΣxP(x) and Var(X) = σ² = Σ(x - μ)²P(x) = Σx²P(x) - μ² for the random variable X, where Var(X) is the variance and σ is the standard deviation of the distribution

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