- Prof Dev
This page calculates probabilities for a Poisson distribution.
This page calculates either estimates of sample size or power for differences in proportions. The program allows for unequal sample size allocation between the two groups.
Statistician: A man who believes figures don't lie, but admits that under analysis some of them won't stand up either. A quote from "Esar's Comic Dictionary" (Harvest House, 1943) by American humorist Evan Esar (pen name for Esar Levine).