Statistics Calculators

Data Range Calculator Calculate the spread from minimum to maximum. Open calculator → Relative Frequency Percentage Calculator Calculate relative frequency as a percentage. Open calculator → Coefficient of Quartile Deviation Calculator Calculate the coefficient of quartile deviation. Open calculator → Percent Error Calculator Finds the percent error from the numbers you enter. Enter the reference value and compared value. Open calculator → Five Number Summary Calculator Finds the five number summary from the numbers you enter. Enter the mean / value, standard deviation, and sample size. Open calculator → Sample Size for Proportion Calculator Finds the sample size for proportion from the numbers you enter. Enter the mean / value, standard deviation, and sample size. Open calculator → Relative Risk Calculator Finds the relative risk from the numbers you enter. Enter the mean / value, standard deviation, and sample size. Open calculator → Descriptive Statistics Calculator Calculate count, mean, median, mode, range, quartiles, variance and standard deviation. Open calculator → Regression Slope Calculator Calculate the least-squares slope. Open calculator → Variance of Distribution Calculator Calculate variance from discrete outcomes and probabilities. Open calculator → Normal Approximation Calculator Approximate binomial probabilities with a normal distribution and continuity correction. Open calculator → One Sample T Test Calculator Test a sample mean against a hypothesized population mean. Open calculator →