What is the probability of flipping a coin 15 times and getting tails 10 times?

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asked Dec 5, 2019 124k views

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Ollin Boer Bohan · Answer 1 · 2019-12-10T11:12:27+0000

This is found using the binomial distribution with P(H) = 1/2 and P(T) = 1/2 n = 15 and r = 10

= nCr(0.5)^(15-10)(0.5)^10

= 15C10 * 0.5^15 = 0.0916 or 9.16%

What is the probability of flipping a coin 15 times and getting tails 10 times?

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