Let X and Y be independent random variables whose probability density functions satisfy 6\" if u 2 0 0 else fx(U) = fy(U) = { What is the probability that Y is less than 4X ? (a) 5/ 6 (b) 3/ 4 (C) 1/ 4 (d) 1/ 5 (6) 1/ 3 (f) 1/2 (g) 1/ (4 6) (h) 3/ (4 6) (i) 1 (j) 0 (k) 4/ 5 (1) None of these