poissonDistribution -- Poisson distribution

Synopsis

Usage:

poissonDistribution lambda
Inputs:
- lambda, a number, the rate parameter;
Outputs:
- a discrete probability distribution,

Description

The Poisson distribution, the distribution of the number of events to occur during some interval of time when the expected number of events is lambda.

i1 : X = poissonDistribution 10

o1 = Pois(10)

o1 : DiscreteProbabilityDistribution

i2 : density_X 2

o2 = .00226999648812424

o2 : RR (of precision 53)

i3 : probability_X 3

o3 = .0103360506759257

o3 : RR (of precision 53)

i4 : quantile_X 0.4

o4 = 9

i5 : random X

o5 = 14

Ways to use poissonDistribution :

poissonDistribution(Constant)
poissonDistribution(Number)

For the programmer

The object poissonDistribution is a method function.