TI-83 Plus Inferential Statistics and Distributions 432
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:
,2,1,0,!/)( == −xxexf x
µµ
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)