Question: 5. The random variables X andY have joint probability density function (PDF given by fxy(z, y) = 8y2, exp (a) [8 points Find the marginal

5. The random variables X andY have joint probability density function

5. The random variables X andY have joint probability density function (PDF given by fxy(z, y) = 8y2, exp (a) [8 points Find the marginal PDFs,fx() and fr (). (b) 4 points Find E[X] and E Y (c) [4 points Find Var[X] and Var[Y (d) [4 points] Find Cov(X, Y] and

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