Casio ClassPad 300 - Page 388

20021201
k Poisson Distribution
Poisson Probability
Command: PoissonPD䡺
Description: This command calculates the probability that a random variable that follows a
Poisson distribution will be a given x value.
f(x) =
x!
e
– x
µ
µ
(x = 0, 1, 2, ···) µ :mean ( µ > 0)
Command Syntax
x value, µ value
Definition of Terms
x : specified data(x > 0)
µ :mean ( µ > 0)
Input Example:
PoissonPD 31,0.36
Calculation Result Output
p :Poisson probability
Poisson Cumulative Probability
Command: PoissonCD䡺
Description: This command calculates the probability that a random variable that follows a
Poisson distribution will be a given x value or less.
Command Syntax
x value, µ value
Definition of Terms
x : specified data(x > 0)
µ :mean ( µ > 0)
Input Example:
PoissonCD 31,0.36
Calculation Result Output
p :Poisson cumulative probability
7-11-9
Distribution