Question: Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the same sample space. Suppose that we

Suppose that X, Y, and Z are jointly distributed random variables, that

Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the same sample space. Suppose that we also have the following. E(Y) =-7 Var (X) = 8 Var (Y) = 49 Var (Z) = 3 E(X) = 2 E(Z) =5 Compute the values of the expressions below. E(-22 + 4) - | 21 + 22 Var (2Y) +5 - 0 E(-z') - 0

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