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Need help solving 2. Let E(Y.) = u and Var(Y;) = 02. Then find the mean and variance of the following random variables. Show your

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2. Let E(Y.) = u and Var(Y;) = 02. Then find the mean and variance of the following random variables. Show your steps in each case! (a) Zi = Yi -H (b) U = ZMYi (c) T = U-H

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