used by people in more than 220 countries!

Below you will find descriptions and links to 3 free statistics calculators for computing values associated with noncentral probability distributions.

If you like, you may also use the search page to help you find what you need.

This calculator will compute the cumulative distribution function (CDF) for the noncentral F-distribution, given an F-value, the numerator and denominator degrees of freedom, and the noncentrality parameter.

This calculator will compute the cumulative distribution function (CDF) for the noncentral t-distribution (i.e., the area under the noncentral t-distribution from negative infinity to t), given a t-value, the degrees of freedom, and the value of the noncentrality parameter.

This calculator will compute the probability density function (PDF) for the noncentral t-distribution, given a t-value, the degrees of freedom, and the value of the noncentrality parameter.