## Excel Function : POISSON

###### Category

Compatibility

###### Description

Returns the Poisson distribution

###### Microsoft Excel Reference Page

https://support.office.com/en-us/article/POISSON-function-d81f7294-9d7c-4f75-bc23-80aa8624173a

## Syntax and Description of the POISSON Excel Function

The POISSON function in Excel calculates the probability of a given number of events occurring in a given time period. The syntax for the POISSON function is as follows: POISSON(x, mean, cumulative) x - The number of events. mean - The expected number of events. cumulative - A logical value that determines whether the function returns the probability of the given number of events occurring (FALSE) or the probability of the given number of events or fewer occurring (TRUE).

## About POISSON Excel Function

The POISSON function in Excel calculates the probability of a given number of events occurring in a given time period, when the average number of events is known.