The following program determines the maximum value in an unordered array A[1...n] of distinct elements: 1....
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The following program determines the maximum value in an unordered array A[1...n] of distinct elements: 1. 2. 3. 4. 5. max-x for i=1 to n do compare A[i] to max if A[i]> max then max = = A[i] (a) If a number x is randomly chosen from a set of n distinct numbers, what is the probability that is the largest in that set? (b) When line 5 of the program is executed, what is the relationship between A[i] and A[j] for 1 ji? (c) For each i in the range 1 i n, what is the probability that line 5 is executed? (d) Let S, S2, ..., Sn be n random variables, where si represents the number of times (0 or 1) that line 5 is executed during the i-th iteration of the for-loop. What is E[si]? (e) Let s = 81 +82 +...+Sn be the total number of times that line 5 is executed during somendows run of the program. Prove that E[s] = O(logn). Go to Settings to activate The following program determines the maximum value in an unordered array A[1...n] of distinct elements: 1. 2. 3. 4. 5. max-x for i=1 to n do compare A[i] to max if A[i]> max then max = = A[i] (a) If a number x is randomly chosen from a set of n distinct numbers, what is the probability that is the largest in that set? (b) When line 5 of the program is executed, what is the relationship between A[i] and A[j] for 1 ji? (c) For each i in the range 1 i n, what is the probability that line 5 is executed? (d) Let S, S2, ..., Sn be n random variables, where si represents the number of times (0 or 1) that line 5 is executed during the i-th iteration of the for-loop. What is E[si]? (e) Let s = 81 +82 +...+Sn be the total number of times that line 5 is executed during somendows run of the program. Prove that E[s] = O(logn). Go to Settings to activate
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Related Book For
Probability And Statistics
ISBN: 9780321500465
4th Edition
Authors: Morris H. DeGroot, Mark J. Schervish
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