Variance Calculator

Calculate σ² population & sample variance

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About Variance Calculator

A variance calculator that computes both population variance (σ²) and sample variance (s²) from a dataset. Shows standard deviation, coefficient of variation, range, and individual deviations. Explains the difference between population (÷n) and sample (÷n−1) formulas. All calculations are client-side. Essential for statistics, quality control, and research.

Variance Calculator Features

  • Population/sample
  • Standard deviation
  • CV%
  • Deviation bars
  • Distribution

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