@MISC{Opencourseware_18.443statistics, author = {Mit Opencourseware and R. M. Dudley}, title = {18.443 Statistics for Applications}, year = {} }

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Abstract

First, here is some notation for binomial probabilities. Let X be the number of successes in n independent trials with probability p of success on each trial. Let q ≡ 1−p. Then we know that EX = np, the variance of X is npq where q = 1 − p, and so the