Skip to content
TDToolsOnDuty
Math Calculators

Statistics Calculator

Analyze a data set with central tendency, spread, variance and standard deviation.

Free foreverRuns in your browserNo sign-up

Separate values with commas, spaces, semicolons or new lines.

Count

8

Sum

40

Mean

5

Median

4.5

Mode

4

Range

7

Minimum

2

Maximum

9

Population variance

4

Population SD

2

Sample variance

4.57142857143

Sample SD

2.1380899353

About the Statistics Calculator

This descriptive statistics calculator gives a complete numerical summary of a data set, covering central tendency, total size, range and variation.

Use mean, median and mode to understand the center of the data. Range, variance and standard deviation show how widely values are spread.

Unlike the quick Average Calculator, this broader tool reports both population and sample variation measures, making it suitable for coursework and initial data exploration.

Key features

  • Mean, median and mode
  • Count, sum, minimum, maximum and range
  • Population variance and standard deviation
  • Sample variance and standard deviation

How to use

  1. 1Paste or type the data values.
  2. 2Separate values with commas, spaces, semicolons or new lines.
  3. 3Review the complete descriptive statistics table.

Frequently asked questions

What are descriptive statistics?
They are numerical summaries that describe a data set, such as its center, size and spread, without making predictions beyond the observed values.
What happens when there is no repeated value?
The calculator reports No mode because no value occurs more often than the others.
Why are sample results unavailable for one value?
Sample variance divides by n minus 1, which is zero when there is only one observation.