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Suppose thatX,Y, and Zare independent random variables with unit variance. Furthermore,E[X] = 0and E[Y] = E[Z] = 2. Then, Cov(XY, XZ) = ???

Suppose thatX,Y, and Zare independent random variables with unit variance. Furthermore,E[X] = 0and E[Y] = E[Z] = 2. Then,

Cov(XY, XZ) = ???

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