Random Coin Flips


A professor asks his students to secretly choose one of two homework assignments.  They are to flip a coin 200 times and report the results, or they are to simply fake a series of results that appears that appear to be from 200 coin flips.   When students trying both approaches hand in their assignments, this professor can identify the fake results with almost perfect accuracy.  How does he do this?



Random Coin Flips Answer


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