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13-02-2018
Mathematics

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What is the probability of flipping exactly two heads after 3 times?

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Аноним Аноним

13-02-2018

p(h+ h + t) + p(h + t + h) + p (t + h + h)
= 3(1/2*1/2*1/2 )= 3(1/8) = 3/8

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