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    Statistics: Probability and Deviation

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    X has binomial distribution with parameters n = 20 and p = 0.1. Find the probability that X deviates from its mean by *less than or equal to* "k" multiples of its standard deviation for (a) k = 1, (b) k = 2.

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    https://brainmass.com/statistics/probability/statistics-probability-deviation-212585

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    m = np = 2 and s = sqrt[np(1 - p)] ...

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