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###### Need help on number 3. Please use method of transformation. Explain if possible. (2)Suppose that X...

Need help on number 3. Please use method of transformation. Explain if possible.

(2)Suppose that X and X2 have joint pdf f(x1, x2) = 2 ,0<x1<x2 < 1, and zero otherwise. Compute the pdf of the random variable Y = (3)Let X-Exp(1) and Y-Exp(1). X and Y are independent. a. Find the pdf of A=(X+Y) and B=(x-7). b. Are A and B independent? C. Find the marginal of A and B

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