My stats professor said he used to have an assignment where he had students flip a coin 100 times and record the results on a sheet of paper. He said he could b

My stats professor said he used to have an assignment where he had students flip a coin 100 times and record the results on a sheet of paper. He said he could be reasonably confident who did and did not actually flip the coin because the students who did not flip the coin would not have any runs longer than 2 or 3.