Texas Instruments TI-84 Plus Guide Book

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
p.
fx() e
µ–
µ
x
x!⁄ x, 0,1,2,...==

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-