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Year 11 Maths - Specialist (Unit 1 and Unit 2) Simulation, sampling and sampling distributions

Sums of independent discrete random variables

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Questions
Question 1
197599
For \(n\) independent random variables \(X_1, X_2, \ldots, X_n\), each identically distributed as \(X\) with mean \(\mu\), which expression gives \(E(X_1+X_2+\cdots+X_n)\)?
\(n\mu\)

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