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Let X be a discrete random variable with expectation value = E(X). Consider the random variable Y = aX + b for a, b

Let X be a discrete random variable with expectation value = E(X). Consider the random variable Y = aX + b for a, b R. (a) What is E(Y)? (b) What is E(Y)? (c) Show: var(Y) = avar (X).

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