Operation Manual

Chapter 13: Inferential Statistics and Distributions 381

poissonpdf(

poissonpdf(poissonpdf(

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:

poissonpdf(m,x)

poissoncdf(

poissoncdf(poissoncdf(

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)

geometpdf(

geometpdf(geometpdf(

geometpdf(

geometpdf( computes a probability at x, the number of the trial on which the first success

occurs, for the discrete geometric distribution with the specified probability of success

fx() e

µ–

x!⁄ x, 0,1,2,...==