SOLUTION: find the mean, variance and standard deviation of the binomial distribution with the given values of n = 128 and p = 0.77

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Question 577849: find the mean, variance and standard deviation of the binomial distribution with the given values of n = 128 and p = 0.77
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
mean = np = 128*0.77 = 98.56

variance = np(1-p) = 128*0.77(1-0.77) = 22.6688

standard deviation = sqrt(variance) = sqrt(22.6688) = 4.761176