used more than 45 million times!

Below you will find descriptions and links to 8 free statistics calculators for computing probability density functions (PDF).

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

This calculator will compute the probability density function (PDF) for the beta distribution, given values of the shape parameters and the point at which to evaluate the function.

This calculator will compute the probability density function (PDF) for the Chi-square distribution, given the point at which to evaluate the function x, and the degrees of freedom.

This calculator will compute the probability density function (PDF) for the Fisher F-distribution, given the numerator and denominator degrees of freedom, and the point at which to evaluate the function x.

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.

This calculator will compute the probability density function (PDF) for the normal distribution, given the mean, standard deviation, and the point at which to evaluate the function x.

This calculator will compute the probability density function (PDF) for the standard normal distribution, given the point at which to evaluate the function x.

This calculator will compute the probability density function (PDF) for Student's t-distribution, given a t-value and the degrees of freedom.

This calculator will compute the probability density function (PDF) for the (continuous) uniform distribution, given the values of the upper and lower boundaries of the distribution and the point at which to evaluate the function.