POISSON.DIST Function

The POISSON.DIST function is one of the statistical functions. It is used to return the Poisson distribution; a common application of the Poisson distribution is predicting the number of events over a specific time, such as the number of cars arriving at a toll plaza in 1 minute.

Syntax

POISSON.DIST(x, mean, cumulative)

The POISSON.DIST function has the following arguments:

Argument	Description
x	The number of events, a numeric value greater than 0.
mean	The expected numeric value greater than 0.
cumulative	The form of the function, a logical value: TRUE or FALSE. If cumulative is TRUE, the function will return the cumulative Poisson probability; if FALSE, it will return the Poisson probability mass function.

Notes

How to apply the POISSON.DIST function.

Examples

The figure below displays the result returned by the POISSON.DIST function.