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)=0 Var(X)=26 E(Y)=8 E(Z)--2 Var(Y) =14 Var(z)36 Compute the values of the expressions below. E(-X-5) = I E()- 0 Y+2X 2. Var(-2+5Z)- O E(-3x)- 0 Dlo

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