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17 January, 19:35

What is the probability of tossing a coin 20 times and getting exactly 16 tails?

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  1. 17 January, 20:02
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    This is a Binomial Distribution

    Probability is 20C16 (0.5) ^16 0 (0.5) ^4

    = 4845 * 0.5^20 = 0.00462 = 0.462%
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