Mathlean · Online math workspace
Population standard deviation calculator
Measure population spread as the square root of its mean squared deviation.
How to use this calculator
Replace the observations in the list; the example returns the square root of 2/3.
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
Interactive tools require JavaScript. You can read the guide and example without it.
What to know
This uses the population convention. Small samples usually call for sample standard deviation instead.
Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.