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For a binomial probability distribution, the variance is n*p*q which is 80*.3*.7 = 16.8. The standard deviation is square root of the variance which is 4.099; rounded is 4.1. The mean for a binomial probability distribution is n*p or 80*.3 or 24.

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Q: Can you please tell me the variance and the standard deviation for n equals 80 and p equals 0.3?
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