Standard Deviation Calculator

Analyze a finite list of numbers as a complete population or a sample from a larger population. Calculate it clearly with Figur.

Standard Deviation Calculator

Analyze a finite list of numbers as a complete population or a sample from a larger population.

Method and assumptions

Figur calculates the mean, sum of squared deviations, variance, and its square root. It divides by n for a population or n − 1 for a sample.

  • All values are finite numbers separated by commas, spaces, or line breaks.
  • Population mode represents the complete set; sample mode requires at least two observations.
  • The statistics describe the entered data and do not establish causality or representativeness.

Sources and references

Frequently asked questions

When should I choose sample?

Choose sample when your values represent only part of a larger population; it uses n − 1.

Which separators work?

Use commas, spaces, or new lines between finite numeric values.