Find the mean, variance, and standard deviation of the binomial ditribution with the given values of n and p.

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Find the mean, variance, and standard deviation of the binomial ditribution with the given values of n and p.

[From: ] [author: ] [Date: 12-04-26] [Hit: ]

which is denoted as q. So q=1-p=1-.8=.2.......

. mean = np = 76(.8) = 60.8

variance = npq = 76(.8)(.2) = 12.16

std. dev. = sqrt 12.16 = 3.49

Can anyone Enlighten me on where the .2 for q comes from if I only know n and p to begin with?

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p= prob of success; prob of failure is 1-p, which is denoted as q. So q=1-p=1-.8=.2.

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