used by people in more than 230 countries!
Calculator: Cumulative Distribution Function (CDF) for the Poisson Distribution
Cumulative Distribution Function (CDF) Calculator for the Poisson Distribution
This calculator will compute the cumulative distribution function (CDF) for the Poisson distribution, given the number of event occurrences and the expected number of event occurrences.
Please enter the necessary parameter values, and then click 'Calculate'.