Statistics Calculators

Find the probability of getting a specific number of heads in several flips.

Calculate how many ways to choose r items from n, order not mattering.

Estimate the margin of error around a sample mean.

Measure the linear correlation between two paired values (demo with fixed 3-point set).

Find the probability of rolling a specific sum with two six-sided dice.

Enter a list of numbers to find their mean.

Find outliers in a data set using the interquartile range method.

Calculate the p-value for a given z-score.

Find the value at a given percentile in a data set.

Calculate how many ordered arrangements of r items from n are possible.

Calculate the probability of an event from favorable and total outcomes.

Find the range (max − min) of a data set.

Fit a line's slope through a fixed 3-point demo data set given your third point.

Determine the sample size needed for a target margin of error.

Calculate the sample standard deviation of a data set.

Calculate the sample variance of a data set.

Calculate a weighted average from two value/weight pairs.

Calculate how many standard deviations a value is from the mean.