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You are given three independent random variables: X, Y, and Z. The expected values of each are 0, and the variances of each a

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Quesión 2 z 2 @- E(X)= E(Y)= E(z)=0, Vos()= vas (%) = Var (1)= 1, Cov(X,Y)= Corry, z) = Cor(x,z)=0 Vi = Yt2, U2 = X-Y vas ( .

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