Explore our collection of statistics calculators organized by subcategory.
Calculate the mean (average) of a set of numbers.
Calculate the median (middle value) of a set of numbers.
Calculate standard deviation, variance, and mean of a dataset.
Calculate variance and standard deviation of a dataset.
Calculate the range (difference between max and min) of a dataset.
Calculate percentiles and quartiles of a dataset.
Calculate z-score (standard score) for a data point.
Calculate probability of events and combinations.
Calculate combinations (nCr) - ways to choose r items from n items.
Calculate permutations (nPr) - ordered arrangements.
Calculate the mode (most frequently occurring value) of a dataset.
Calculate quartiles (Q1, Q2, Q3) of a dataset.
Identify outliers in a dataset using the Interquartile Range (IQR) method.
Calculate binomial distribution probabilities (P(X = k) and cumulative probabilities) for given n and p.
Calculate probabilities for normal distribution.
Calculate Poisson distribution probabilities.
Calculate linear regression line and correlation coefficient.
Calculate correlation coefficient between two variables.
Calculate R-squared (coefficient of determination) for a simple linear regression given comma-separated X and Y values.
Perform t-test for comparing means.
Perform chi-square test for independence.
Perform Analysis of Variance (ANOVA) test.
Calculate required sample size for statistical tests using confidence level, margin of error, and population size.
Calculate confidence interval for a population mean.