2. Two components of a computer have the following joint pdf for their useful lifetime X and Yin years): f(x,y) = (2x + 3y), 0 SX S1 and 0 s y s 1; 0, otherwise Find (1) the marginal pdf of Y (the useful lifetime of the 2nd component); (ii) the conditional pdf of X given that Y = 1/3; (iii) the expected value of X given that Y = 1/3. = {(2**3