Statistics Calculators

Z Test One Proportion Calculator Calculate a one-sample z test for a population proportion. Open calculator → Standard Deviation Calculator Finds the standard deviation from the numbers you enter. Enter the mean / value, standard deviation, and sample size. Open calculator → Median Calculator Finds the median from the numbers you enter. Enter the mean / value, standard deviation, and sample size. Open calculator → Trimmed Mean Calculator Finds the trimmed mean from the numbers you enter. Enter the mean / value, standard deviation, and sample size. Open calculator → T Distribution Calculator Finds the t distribution from the numbers you enter. Enter the mean / value, standard deviation, and sample size. Open calculator → Cohen’s d Calculator Finds the cohen's d from the numbers you enter. Enter the mean / value, standard deviation, and sample size. Open calculator → Mean Median Mode Calculator Calculate mean, median and mode together. Open calculator → Regression Prediction Calculator Predict Y from a fitted linear regression equation. Open calculator → Shannon Entropy Calculator Calculate Shannon entropy from a probability distribution. Open calculator → Empirical Rule Calculator Calculate the 68-95-99.7 rule ranges around a mean. Open calculator → Independent T Test Calculator Compare means from two independent groups. Open calculator → Wilcoxon Signed Rank Test Calculator Test paired observations with the Wilcoxon signed-rank method. Open calculator →