Server at Davidson College

The Success-O-Rater
A program designed to determine the number of trials needed to find a successful sample.

Based on the single sample success rate, this program will return a table with the number of trials (or samples) needed to find at least one successful sample at the corresponding probabilitiy (.50, .75, .90, .95, .99). Below, enter the single sample success rate and, if desired, a specific probability of success.

Estimated success rate :  %

Custom probability of success (optional):