Calculators

A multinomial coefficient describes the number of possible partitions of n objects into k groups…

A Phi Coefficient is a measure of the association between two binary variables. To calculate…

The pooled standard deviation is a weighted average of two standard deviations from two different…

The Wilcoxon Signed-Rank Test is the non-parametric version of the paired t-test. It is used…

The multinomial distribution describes the probability of obtaining a specific number of counts for k…

This calculator uses the negative binomial distribution to find the probability of experiencing k failures…

This calculator finds probabilities associated with the geometric distribution based on user provided input. p…

This calculator finds probabilities associated with the hypergeometric distribution based on user provided input. Population…

A paired samples t-test is used to compare the means of two samples when each…

Welch’s t-test is used to test whether or not the means of two populations are…