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

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