All-in-One Tools Collection

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Calculate exact, cumulative, and upper-tail binomial probabilities for independent Bernoulli trials

Calculate probabilities for the trial number of the first success in repeated Bernoulli trials

Calculate exact, cumulative, and upper-tail Poisson probabilities from an expected event rate

Calculate standard normal PDF, CDF, tail probability, two-tail probability, and central area from a z-score

Calculate posterior probability P(A given B) using prior, likelihood, and false-positive rate

Calculate P(A given B) from joint probability P(A and B) and condition probability P(B)

Calculate Kendall tau-a and tau-b rank correlation for paired numeric data

Calculate union, independent intersection, complement, and at-least-one probabilities

Calculate Spearman rank correlation for paired numeric data with tied-rank handling

Calculate Pearson and Spearman correlation coefficients from paired numeric data

Calculate sample and population covariance from paired numeric data

Calculate raw and excess kurtosis to measure tail weight and peakedness of a distribution