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Let the joint pdf of X and Y be f(x, y) = kze-z(+1) (a) Find the value of k. (b) Calculate the marginal distribution

Let the joint pdf of X and Y be f(x, y) = kze-z(+1) (a) Find the value of k. (b) Calculate the marginal distribution for Y (c) Find EXIY =). if x>0.y>0 otherwise.

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