ISS PREVIOUS YEAR PAPER-1 2016 SET A Q.NO.-1 Let (X, Y) be jointly distributed with density
f(x, y) = e^(-y), for 0 < x < y < ∞ OR f(x, y) = 0, otherwise
Consider the following statements:
E(X) = 1
E(Y) = 2
E(XY) = 2
Which of the above are correct?
(a) 1 and 2 only(b) 2 and 3 only(c) 1 and 3 only(d) 1, 2 and 3
