6. Suppose that X and Y have the joint density function y-1x1-y, 0 y 1 f(x, y) = elsewhere Reminder that while we can choose to set either the x bounds or the y bounds first in a double integral, one choice may be easier than the other! (a) Find P(X 0). (b) What is the probability that X>0 given that Y > 1/2? (c) Find Cov(X, Y).