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★★★★★
Average rating on the App Store. Apple doesn't publish how many ratings each star has.
Where this app stands in Spain, updated 8 Oct 2026
Top free
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Top paid · All apps and games
#7 –
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Probability Distributions has been completely re-written for better stability, error checking, and graphics. It maintains the easy-to-use interface of the old version while being more attractive and responsive. App maintenance will be much more straightforward.
Compute probabilities, determine percentiles, and plot the probability density function for the normal (Gaussian), t, chi-square, F, exponential, gamma, beta, log-normal, and Uniform distributions. Compute probabilities, approximate percentiles, and plot the probability mass function for the binomial, geometric (2 versions), hypergeometric, Poisson, and negative binomial (2 versions) distributions.