16. Aces. A standard deck of 52 cards is shuffled and dealt. Let X, be the number of cards appearing before the first ace, X2 the number of cards between the first and second ace (not counting either ace), X3 the number between the second and third ace, X4 the number between the third and fourth ace, and X's the number after the last ace. It can be shown that each of these random variables X, has the same distribution, i = 1,2,...,5, and you can assume this to be true.Let the random variables X] and X2 be defined as in problem 16 in Section 3.2, p. 183. Find the conditional probability P( X2 = 9 X1 = 13)