Pregunta: x+y 7.3.4. Let f(x, y) = e, 0 < x < y 60 >0 (0:6)R e

x+y 7.3.4. Let f(x, y) = e, 0 < x < y<co, zero elsewhere, be the joint pdf of the random variables of X and Y. nistdo (a) Show that the mean and the variance of X are respectively, and 2. 2 (b) Show that E(Y2x) = x² + 20x + 20². ols Y to lbq adT919dweals 0198 making the ch results in (c) Compute E(X|y). ,00 > 60 >0 (0:6)R e