What is the relationship between the joint CDF and the marginal CDFS of X and Y?

on page 496. Dew b) Exercise 9.100(a, 9.168 Let X and Y denote the x and y coordinates, respectively, of a point selected at random d) the FPE a) Proposition 9.1 from the rectangle (a, b) x (c, d) = { (x, y) e R2 :a < x < b, c < y < d}. a Determine the joint CDF of the random variables X and Y b) Use part (a) to obtain the marginal CDFS of X and Y c) Use part (b) to identify the probability distributions of X and Y d) What is the relationship between the joint CDF and the marginal CDFS of X and Y? e) Are X and Y independent random variables? Hint: Apply Proposition 9.4 on page 499 to your answer from part (d). cha random variables X and Y in Exercise 9 1601