Question: There are two random variables, X and Y.Let p(X = + 2) = 0.7, p(X = + 4) = 0.2, p(X = + 8) =

There are two random variables, X and Y.Let p(X = + 2) = 0.7, p(X = + 4) = 0.2, p(X = + 8) = 0.1.Furthermore, let p(Y = - 8) = 0.2, p(Y = - 3) = 0.3, p(Y = + 1) = 0.5.Finally, let E(XY) = - 3.8.What does Cov(X,Y) equal?

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