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3. (2.25 points.) Let (X, Y) be a continues bivariate r.v. with joint pdf fxx(x, y) =e zy, ry>0. Find the joint moment generating function

3. (2.25 points.) Let (X, Y) be a continues bivariate r.v. with joint pdf fxx(x, y) =e zy, ry>0. Find the joint moment generating function of (X, Y)

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