Mathematics category
Statistics calculators
Data summaries, uncertainty, measurement and practical quantitative models.
1288 calculators in this category. Page 1 of 27.
1288 calculators available. Search data loads only when you use this field.
Mean and median
Calculate the arithmetic mean and median of six values.
Open calculator StatisticsStandard deviation
Calculate population and sample standard deviation for six values.
Open calculator StatisticsData range
Find the minimum, maximum and range of six entered observations.
Open calculator StatisticsZ-score
Standardise a value by measuring how many standard deviations it lies from the mean.
Open calculator StatisticsWeighted mean
Calculate the weighted mean of three values when observations have different importance or frequency.
Open calculator StatisticsPopulation variance
Calculate population variance for six observations.
Open calculator StatisticsQuartiles
Find lower quartile, median and upper quartile for six values.
Open calculator StatisticsInterquartile range
Calculate the middle-50-percent spread for six values.
Open calculator StatisticsRoot mean square
Calculate the quadratic mean of six values.
Open calculator StatisticsGeometric mean
Calculate the geometric mean of six positive values.
Open calculator StatisticsHarmonic mean
Calculate the harmonic mean of six positive rates.
Open calculator StatisticsCoefficient of variation
Compare population standard deviation with the mean for six values.
Open calculator StatisticsCovariance
Calculate population covariance for three paired observations.
Open calculator StatisticsPearson correlation
Calculate Pearson's correlation coefficient for three pairs.
Open calculator StatisticsLinear regression
Fit a least-squares line to three paired observations.
Open calculator StatisticsNormal CDF
Estimate the probability below a value in a normal distribution.
Open calculator StatisticsNormal interval probability
Estimate probability between two bounds in a normal distribution.
Open calculator StatisticsMean confidence interval
Calculate a z-based confidence interval for a mean with known standard deviation.
Open calculator StatisticsTwo-Value Arithmetic Mean
Calculate arithmetic mean from first value and second value.
Open calculator StatisticsTwo-Value Arithmetic Mean: solve first value
Rearrange the two-value arithmetic mean relationship and solve for first value.
Open calculator StatisticsTwo-Value Arithmetic Mean: solve second value
Rearrange the two-value arithmetic mean relationship and solve for second value.
Open calculator StatisticsTwo-Value Geometric Mean
Calculate geometric mean from first positive value and second positive value.
Open calculator StatisticsTwo-Value Geometric Mean: solve first positive value
Rearrange the two-value geometric mean relationship and solve for first positive value.
Open calculator StatisticsTwo-Value Geometric Mean: solve second positive value
Rearrange the two-value geometric mean relationship and solve for second positive value.
Open calculator StatisticsTwo-Value Harmonic Mean
Calculate harmonic mean from first positive rate and second positive rate.
Open calculator StatisticsTwo-Value Harmonic Mean: solve first positive rate
Rearrange the two-value harmonic mean relationship and solve for first positive rate.
Open calculator StatisticsTwo-Value Harmonic Mean: solve second positive rate
Rearrange the two-value harmonic mean relationship and solve for second positive rate.
Open calculator StatisticsMean–Total Relationship
Calculate data total from arithmetic mean and observation count.
Open calculator StatisticsMean–Total Relationship: solve arithmetic mean
Rearrange the mean–total relationship relationship and solve for arithmetic mean.
Open calculator StatisticsMean–Total Relationship: solve observation count
Rearrange the mean–total relationship relationship and solve for observation count.
Open calculator StatisticsStandard Error–Sample Size
Calculate standard error from standard deviation and sample size.
Open calculator StatisticsStandard Error–Sample Size: solve standard deviation
Rearrange the standard error–sample size relationship and solve for standard deviation.
Open calculator StatisticsStandard Error–Sample Size: solve sample size
Rearrange the standard error–sample size relationship and solve for sample size.
Open calculator StatisticsZ-Score Displacement
Calculate distance from mean from z-score and standard deviation.
Open calculator StatisticsZ-Score Displacement: solve z-score
Rearrange the z-score displacement relationship and solve for z-score.
Open calculator StatisticsZ-Score Displacement: solve standard deviation
Rearrange the z-score displacement relationship and solve for standard deviation.
Open calculator StatisticsMargin–Sample Size Ratio
Calculate required sample-size index from critical spread product zσ and target margin.
Open calculator StatisticsMargin–Sample Size Ratio: solve critical spread product zσ
Rearrange the margin–sample size ratio relationship and solve for critical spread product zσ.
Open calculator StatisticsMargin–Sample Size Ratio: solve target margin
Rearrange the margin–sample size ratio relationship and solve for target margin.
Open calculator StatisticsVariance–Squared-Deviation Total
Calculate sum of squared deviations from population variance and observation count.
Open calculator StatisticsVariance–Squared-Deviation Total: solve population variance
Rearrange the variance–squared-deviation total relationship and solve for population variance.
Open calculator StatisticsVariance–Squared-Deviation Total: solve observation count
Rearrange the variance–squared-deviation total relationship and solve for observation count.
Open calculator StatisticsCoefficient of Variation Ratio
Calculate coefficient of variation from standard deviation and mean magnitude.
Open calculator StatisticsCoefficient of Variation Ratio: solve standard deviation
Rearrange the coefficient of variation ratio relationship and solve for standard deviation.
Open calculator StatisticsCoefficient of Variation Ratio: solve mean magnitude
Rearrange the coefficient of variation ratio relationship and solve for mean magnitude.
Open calculator StatisticsF Variance Ratio
Calculate f ratio from first variance estimate and second variance estimate.
Open calculator StatisticsF Variance Ratio: solve first variance estimate
Rearrange the f variance ratio relationship and solve for first variance estimate.
Open calculator StatisticsF Variance Ratio: solve second variance estimate
Rearrange the f variance ratio relationship and solve for second variance estimate.
Open calculator