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)...

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Extracted text: 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 %3D 2. Var(-2+5z)- I E(-3x)- O Dlo