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POISSON function

Returns the Poisson distribution (older name of POISSON.DIST).

Syntax

=POISSON(x, mean, cumulative)

Arguments

ArgumentRequiredDescription
xRequiredThe number of events
meanRequiredThe expected number of events
cumulativeRequiredTRUE for the cumulative distribution, FALSE for the density

How to use POISSON

POISSON is kept so older workbooks keep working. It calculates the same way as POISSON.DIST, which is the name to use in new formulas.

POISSON takes 3 required arguments. Type =POISSON( in a cell and SheetsBat shows the arguments as you go. Optional arguments are shown in square brackets; leave them out to use their default.

Examples

Each result below was calculated by the SheetsBat formula engine.

=POISSON(2, 5, TRUE)Result 0.124652019

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