Mathlean · Online math workspace

Sample variance calculator

Calculate sample variance using the n−1 denominator.

How to use this calculator

Replace [1,2,3] with your sample observations. Their sample variance is 1.

Tap the math below to edit it and see the result. Once a result is ready, press Tab on a hardware keyboard to accept it. Outside a matrix, Return completes the line; the phone math keyboard has the same Return action.

Try it here

Variance⁡([1,2,3])\operatorname{Variance}\left([1,2,3]\right)

Interactive tools require JavaScript. You can read the guide and example without it.

What to know

At least two observations are required. Use PopulationVariance for the n denominator.

Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.

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