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The probability of flipping 91 coins and getting a head 91 times in a row is 1/291 or (1/2)91 or 4.039E-28.

The (1/2)91 is when there is exactly 91 coin tosses or n = 91.

As the number of trials increases so does the probability of at least 1 run of length 91.

The average number of coin flips to see 91 in a row is 4.951760157141521e+27

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โˆ™ 2011-07-21 05:00:29
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A polynomial of degree zero is a constant term

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Q: What is the probability of flipping 91 coins and getting a head 91 times in a row?
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