Texas Instruments TI-84 PLUS Guidebook - Page 254
binomcdf, poissonpdf, which must be a real number > 0.
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binomcdf( binomcdf( computes a cumulative probability at x for the discrete binomial distribution with the specified numtrials and probability of success (p) on each trial. x can be a real number or a list of real numbers. 0p1 must be true. numtrials must be an integer > 0. If you do not specify x, a list of cumulative probabilities is returned. binomcdf(numtrials,p[,x]) poissonpdf( poissonpdf( computes a probability at x for the discrete Poisson distribution with the specified mean m, which must be a real number > 0. x can be an integer or a list of integers. The probability density function (pdf) is: f(x) = e-μμx ⁄ x!,x = 0,1,2,... poissonpdf(m,x) poissoncdf( poissoncdf( computes a cumulative probability at x for the discrete Poisson distribution with the specified mean m, which must be a real number > 0. x can be a real number or a list of real numbers. poissoncdf(m,x) Chapter 13: Inferential Statistics and Distributions 247