SOLUTION: A die is rolled 360 times. Find the mean, variance, and standard deviation of the number of 4s that will be rolled?
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Question 522192: A die is rolled 360 times. Find the mean, variance, and standard deviation of the number of 4s that will be rolled? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A die is rolled 360 times. Find the mean, variance, and standard deviation of the number of 4s that will be rolled?
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Binomial distribution with n=360 and p(4) = 1/6
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mean = np = 360*(1/6) = 60
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variance = npq = 60(5/6) = 50
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std = sqrt(npq) = 5*sqrt(2)
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Cheers,
Stan H.
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