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anonymous
 4 years ago
The probability of getting a tail most of the time in 10 tosses of an unbiased coin
anonymous
 4 years ago
The probability of getting a tail most of the time in 10 tosses of an unbiased coin

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0most of the times means more then 5 times

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I assume that means the probability of getting a tail 6, 7, 8 , 9, or 10 times? This is binomial probability. If the total coin flips (10) is n, the number of successes (6,7,8,9, or 10) is r, the probability of success (tails) is p, and the probability of failure ( heads) is q, you find \[ P(r) = \frac{n!}{r!(nr)!} p^r q^{nr} \] right? Calculate the probability for r = 6, r = 7, r = 8, r = 9, and r= 10, and add them all together.
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