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POISSON

Compatibility

Pre-2010 name for POISSON.DIST.

Syntax

POISSON(x, mean, cumulative)

Full notes for POISSON are still being written. Use the AI explainer below for the arguments, a worked example and common mistakes.

More Compatibility functions

BETADISTBETAINVBINOMDISTCHIDISTCHIINVCHITESTCONFIDENCECOVARCRITBINOMEXPONDISTFDISTFINV

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Syntax follows Microsoft’s documentation. Examples are written to be pasted into a cell and checked. Argument separators may be ; in your locale. The AI explainer runs on a free community model — verify anything important.