#Statistics

Tagged with “Statistics”

48 calculators · 1 articles

Calculators and explainers tagged under Statistics.

Calculators

Statistics / Descriptive

Mean, Median, Mode Calculator

Paste a list of numbers to get mean, median, mode, range, and standard deviation instantly.

basic

25,068 4.2 1 min

Math / Percentage

Mean Absolute Deviation Calculator

Compute the mean absolute deviation (MAD) — the average absolute distance of each value from the mean — alongside the me...

basic

24,674 4.3 1 min

Statistics / Descriptive

Covariance from Paired Sums Calculator

Calculates sample covariance Cov(X,Y) = [ΣXY − (ΣX)(ΣY)/n] / (n−1) and population covariance / (n). Also shows the sign...

basic

24,193 4.8 1 min

Statistics / Descriptive

Coefficient of Variation (CV) Dispersion Calculator

Calculates the coefficient of variation (CV) as a percentage to compare variability between datasets with different mean...

basic

23,865 4.7 1 min

Statistics / Probability

Probability Calculator

Compute probabilities of single events, joint events, and complements using basic probability rules.

basic

23,804 4.8 1 min

Statistics / Descriptive

Quartile Calculator

Compute the five-number summary (min, Q1, median, Q3, max), interquartile range, and 1.5×IQR outliers from a list of num...

basic

22,624 4.6 1 min

Statistics

Confidence Interval z-Critical Bounds Calculator

Calculates the confidence interval for a population mean from sample mean, known standard deviation, sample size, and co...

basic

22,582 4.1 1 min

Statistics

Sample Size for Mean Confidence Interval Calculator

Calculates the required sample size to estimate a population mean within a specified margin of error E at a given confid...

basic

22,529 4.8 1 min

Statistics

Chi-Square Independence Test Calculator

Calculates the chi-square statistic for a 2×2 contingency table to test for independence between two categorical variabl...

basic

21,935 4.7 1 min

Statistics / Probability

Chebyshev's Probability Bound Calculator

Applies Chebyshev's inequality to give a distribution-free bound on the probability of a value lying more than k standar...

basic

21,848 3.9 1 min

Math / Percentage

Standard Error of the Mean Calculator

Compute the standard error of the mean (SEM) — how precisely the sample mean estimates the population mean — from a list...

basic

20,839 4.2 1 min

Statistics / Descriptive

Coefficient of Variation Calculator

Calculate the coefficient of variation (CV) — a unitless measure of dispersion that lets you compare the spread of data...

basic

20,549 4.6 1 min

Statistics

Paired Samples Difference t-Test Calculator

Calculates the t-statistic for a paired t-test from the mean difference, standard deviation of differences, and sample s...

basic

20,478 4.0 1 min

Math / Percentage

Mean Calculator

Compute the arithmetic mean (average), along with the median, mode, sum, and range, of any comma-separated list of numbe...

basic

20,157 5.0 1 min

Statistics / Probability

Uniform Distribution Variance Calculator

Calculates the variance and standard deviation of a continuous uniform distribution on interval [a, b].

basic

19,624 4.1 1 min

Statistics / Descriptive

Pearson Correlation from Sums Calculator

Computes the Pearson correlation coefficient r from aggregate statistics without raw data: r = [nΣXY − ΣXΣY] / √{[nΣX² −...

basic

19,119 4.0 1 min

Math / Percentage

Covariance Calculator

Compute the sample covariance, population covariance, Pearson correlation r, and the slope of the regression line from t...

basic

18,807 4.7 1 min

Statistics / Descriptive

Standard Deviation Calculator

Calculate sample and population standard deviation with variance and z-scores for each value.

basic

18,294 4.9 1 min

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Showing 1 to 18 of 48 results

Articles

explainer Statistics

Standard Deviation in Five Minutes

Standard deviation is "average distance from the average". That one sentence covers 90% of everything you ever need to remember about it.

Daniel Oh

Mar 20, 2026 3 min

Best Free Calculator

Browse categories

Tagged with “Statistics”

Calculators

Mean, Median, Mode Calculator

Mean Absolute Deviation Calculator

Covariance from Paired Sums Calculator

Coefficient of Variation (CV) Dispersion Calculator

Probability Calculator

Quartile Calculator

Confidence Interval z-Critical Bounds Calculator

Sample Size for Mean Confidence Interval Calculator

Chi-Square Independence Test Calculator

Chebyshev's Probability Bound Calculator

Standard Error of the Mean Calculator

Coefficient of Variation Calculator

Paired Samples Difference t-Test Calculator

Mean Calculator

Uniform Distribution Variance Calculator

Pearson Correlation from Sums Calculator

Covariance Calculator

Standard Deviation Calculator

Articles

Standard Deviation in Five Minutes