This calculator will calculate the variance and standard deviation for either a population or a sample data set.

You can either enter the numbers in the data set one at a time, or you can copy and paste an existing data set (if separated by spaces, commas, line returns, or any combination thereof), or you can enter a number and its frequency (12x4, 8x6, 9x4).

Plus, unlike other online statistics calculators, this calculator will generate and display the step-by-step process used to calculate the results.

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