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

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