POISSON

Name

POISSON —
POISSON(x,mean,cumulative)

Description

The POISSON function returns the Poisson distribution @x is the number of events, @mean is the expected numeric value @cumulative describes whether to return the sum of the poisson function from 0 to @x.

If @x is a non-integer it is truncated. If @x <= 0 POISSON returns #NUM! error. If @mean <= 0 POISSON returns the #NUM! error.

See also

NORMDIST , WEIBULL