# Statistics

Averages Calculates different averages to measure the central tendancy of a series : arithmetic mean, median, mode, geometric mean, harmonic mean, quadratic mean, interquartile range (IQR) and cubic mean.

Standard deviation Calculator of the standard deviation of a statistical series for two dataset types : population or sample.

Variance Computing the variance of datasets representing the entire population or a sample.

Descriptive statistics Display a summary or complete statistics for a dataset : size, min, max, mean, median, variance, standard deviation, quartiles, skewness, kurtosis, etc.).

Quartiles and Percentiles Calculates quartiles, deciles and percentiles of a statistical series.

Correlation Covariance of a statistical series calculator (population or sample datasets). Correlation coefficient, coefficient of determination, Kendall correlation and Spearman coefficient.

Linear Regression Linear regression calculations : linear regression line, total sum of squares (TSS or SST), explained sum of squares (ESS), residual sum of squares (RSS), mean square residual, degrees of freedom, residual standard deviation, correlation coefficient, coefficient of determination (R² or r²), regression variance, 95% confidence interval and finally the 95% prediction interval.

Circular statistics Circular statistics calculator : angular mean, the resultant length, the mean resultant length, the angular variance, and the angular standard deviation.

**Normal distribution**

Normal distribution Probabilities Normal distribution Probabilities Calculator

Inverse Normal distribution Inverse Normal distribution Calculator

Normal distribution Chart Normal distribution Chart Calculator

Normal distribution Number Generator Generates a Normal distribution sample

**Gamma distribution**

Gamma distribution Probabilities Gamma distribution Probabilities Calculator

Inverse Gamma distribution Inverse Gamma distribution Calculator

Gamma distribution measures Calculates some measures on gamma distribution

Gamma distribution chart gamma distribution chart Calculator

**Binomial distribution**

Binomial distribution Probabilities Binomial distribution Probabilities Calculator

Inverse Binomial distribution Inverse Binomial distribution Calculator

Binomial distribution measures Calculates some measures on Binomial distribution

Binomial distribution chart Binomial distribution chart Calculator

**Hypergeometric distribution**

Hypergeometric distribution Probabilities Hypergeometric distribution Probabilities Calculator

Inverse Hypergeometric distribution Inverse Hypergeometric distribution Calculator

Hypergeometric distribution measures Calculates some measures on Hypergeometric distribution

Hypergeometric distribution chart Hypergeometric distribution chart Calculator

**Poisson distribution**

Poisson distribution Probabilities Poisson distribution Probabilities Calculator

Inverse Poisson distribution Inverse Poisson distribution Calculator

Poisson distribution measures Calculates some measures on Poisson distribution

Poisson distribution chart Poisson distribution chart Calculator

**Beta distribution**

Beta distribution Probabilities

**Exponential distribution**

Exponential distribution Probabilities

Inverse Exponential distribution

Exponential distribution chart

**Student's t-distribution**

Student's t-distribution Probabilities

Inverse Student's t-distribution

Student's t-distribution chart

**Uniform distribution**

Uniform distribution Probabilities

**Pareto distribution**

Pareto distribution Probabilities

**Chi-squared distribution**

Chi-squared distribution Probabilities

Inverse Chi-squared distribution

Chi-squared distribution chart

**Lognormal distribution**

Lognormal distribution Probabilities

Inverse Lognormal distribution

**Negative binomial distribution**

Negative binomial distribution Probabilities

Inverse Negative binomial distribution

Negative binomial distribution chart

**Logistic distribution**

Logistic distribution Probabilities

**Cauchy distribution**

Cauchy distribution Probabilities

**Laplace distribution**

Laplace distribution Probabilities

**Geometric distribution**

Geometric distribution Probabilities

Other calculators