DD Question 9 Suppose Y X ~ N(3X, exp(-2X)) select all of the following statements that are TRUE O Y and X are positively correlated O Y and X are negatively correlated The variance of Y decreases as X increases The variance of Y increases as X increasesQuestion 8 1 pts Using Law of Iterated Expectations, solve for the expectation of the following expression, Y - X' Y + 3X Where E(Y) = 1, E(Y|X) = 1/X^2, E(X) = -1 0 5 O 2 O -3 0 -2D Question 7 1 pts Suppose U| X ~ N(0, 2X2) select all of the following statements that are TRUE U is independent of X U is uncorrelated with X The unconditional mean of U is 0 U is mean independent of X Question 8 1 ptsQuestion 10 1 p Which of the following statements about the Cumulative Distribution Function (CDF) is FALSE? the lefthand limit is O and the righthand limit is 1 it is monotonically increasing In the continuous case, it integrates to 1 it is weakly bounded by 0 and 1