Raymond B. answered • 08/23/22
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Math, microeconomics or criminal justice
p=.1, q=1-p = .9
mean = np = 400(.1) = 40
standard deviation = sqr(npq) = sqr(400(.1)(.9)) = sqr36 = 6
Mustafa E.
asked • 08/21/22If the probability of a defective bolt is 0.1, find
a)the mean
b)the standard deviation for the distribution of defective bolts in a total of 400.
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