0 votes 0 votes Let A[1:n] be an array such that A[i]=i . An algorithm randomly permutes the elements of A, call the resulting array A' . Let X denote the number of location such that A'[i]=i. What is expectation of X? mystylecse asked Sep 9, 2017 mystylecse 241 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.