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Problem 1. Let X, Y, Z be random variables with the following distributions: (a) Find E(X Y + Z). (b) Find E(1 2X). (0) Find

Problem 1. Let X, Y, Z be random variables with the following distributions: (a) Find E(X Y + Z). (b) Find E(1 2X). (0) Find Var(1 2Z). (d) Find Var(Y2)

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