Question 694038: how many ways can a person toss a coin 12 times so that the number of heads is between 6 and 8 inclusive?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! how many ways can a person toss a coin 12 times so that the number of heads is between 6 and 8 inclusive?
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You don't want the number of tosses; you just said it was 12.
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You probably want the probability of getting between 6 and 8 heads
when you toss a coin 12 times.
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Binomial Problem with n = 12 ; p(head) = 1/2
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P(6<= x <=8) = binomcdf(12,1/2,8)- binomcdf(12,1/2,5) = 0.5400
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Cheers,
Stan H.
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