Let the joint pdf of random variables X and Y defined as: SA, 0< |æ|+ |y] < 1 |0, otherwise. fx,Y (r, y) = a) What is the value of A? b) What is the marginal pdf of X? c) Are X and Y independent? Prove this. d) Calculate the conditional density fr (y |æ). Prove that it is a valid pdf.

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