Question 605416: A fair coin is tossed 500times,find the probability that the number of heads will not differ from 250 by (1)more than 10 (2)more than 30
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A fair coin is tossed 500times,find the probability that the number of heads will not differ from 250 by (1)more than 10 (2)more than 30
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Binomial Problem with n = 500 and p(heads) = 1/2
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P(240<= x <= 260) = binomcdf(500,1/2,260) - binomcdf(500,1/2,240) = 0.6284
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P(220<= x <= 280) = same procedure
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Cheers,
Stan H.
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