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Unformatted text preview: distribution Standard deviation of a discrete distribution = x 2 P(x) - Binomial formula Mean of a binomial distribution 1 FORMULA SHEET Standard deviation of a binomial distribution z formula for sample means z formula for sample means when there is a finite population z formula for sample proportions z formula for sample proportions when there is a finite population Sample size when estimating Confidence interval to estimate : population standard deviation known n z x 2 / Confidence interval to estimate : population standard deviation unknown n s t x n 1 /,- Confidence interval to estimate p n q p z p 2 / Sample size when estimating p n = zp(1-p) E z test for a single mean 2...
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- Spring '11