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

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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(X)=4Var(X)=28E(Y)=2Var(Y)=19E(Z)=1Var(Z)=48 Compute the values of the expressions below. E(5X+1)=E(4X4Z)=Var(3Z)5=E(5X2)=.

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