69. In the match problem, say that (i,j),i < j , is a pair if i chooses...

Question:

69. In the match problem, say that (i,j),i < j , is a pair if i chooses j ’s hat and j chooses i’s hat.

(a) Find the expected number of pairs.

(b) Let Qn denote the probability that there are no pairs, and derive a recursive formula for Qn in terms of Qj ,j

Hint: Use the cycle concept.

(c) Use the recursion of part

(b) to find Q8.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: