Question 2 1 pts Let X1, X2 be two random variables. Their joint probability density function is fx,x, (21, 82) = Midge An-An, x1 2 0, 12 20. Note that the marginal CDFs of X] and X2 are Fx (x1) = (1 - e Alm ) and Fx, (x2) = (1 -e-Mizz ). Which of the following statements is FALSE? O The joint cumulative distribution function of X1, X, is Fxx, (21, 22) = (1-en) (1-e : ), x1 2 0, 2 20. OF(X X) # E(X]). The conditional probability density function of X] given X, is XX, x () = Me ha, 2 20, 2, 20. O Cov (X1, X2) = 0