Inferential Statistics and Distributions 13–33
8250FC~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:39 PM Printed: 10/27/05 2:57
PM Page 33 of 36
binompdf( computes a probability at x for the discrete binomial
distribution with the specified numtrials and probability of
success (p) on each trial. x can be an integer or a list of integers.
0p1 must be true. numtrials must be an integer > 0. If you do
not specify x, a list of probabilities from 0 to numtrials is
returned. The probability density function (pdf) is:
fx
n
x
pp x n
xnx
() ( )=
−=
−
101,,,,K
where n = numtrials
binompdf(numtrials,p[,x])
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( 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:
fx e x x
x
() !==
−
/, ,,,012K
poissonpdf(
m
,x )
binompdf(
binomcdf(
poissonpdf(
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