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Unformatted text preview: constant (that is, c cannot be a random variable!) Rule : If Std Dev (X) = , Std Dev (X + c) = , where c is any constant P = probability of success, q = probability of failure, n = # of trials, x = # of success Variance: stat calc 1 var stats L1, L2 Binomial: probability of x successes in n trials Geometric: number of trials until first success: GeomCDF(p, k) Poisson: rare events: x = # of times event occurs, lambda = E(x) = np // poissonCDF(lambda, k) Binomial needs: fixed # of trials, independent trials, 2 categories of outcomes, probabilities must remain constant for each trial Mu = n * p // SD = SQR(n*p*q) // E(x) = 1/p Binom pdf = exactly x successes = BinomPDF(n, p, k) Binom cdf = x is less than or equal to k // 1 binom cdf = x or more...
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This note was uploaded on 03/30/2008 for the course STT 200 taught by Professor Dikong during the Spring '08 term at Michigan State University.
- Spring '08