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SDCalc

Variance Calculator: Population σ² and Sample s² with Bessel Correction Compared

Compute variance for your dataset with detailed step-by-step breakdowns and interpretation.

12 values
Instant Math
Sample (n-1) / Population (N)

Use when your data represents a subset of a larger population. Applies Bessel's correction.

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Input your numbers into the Standard Deviation Calculator panel to see real-time statistics, variance, and normal distribution charts.