METHODCalculation, assumptions and sources
Formula used
s = √(Σ(x−x̄)²/(n−1)); σ = √(Σ(x−μ)²/N)
What is included
Analyze numbers with mean, median, mode, quartiles and both sample and population spread.
Assumptions and limits
Inputs are treated as finite real numbers; rounding and model choices are shown with the result.
Reference sources
NIST Engineering Statistics Handbook
Last reviewed: September 2026Statistics Calculator
Analyze numbers with mean, median, mode, quartiles and both sample and population spread.
Enter the required values or content, adjust the options and then review the detailed result.
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Analyze numbers with mean, median, mode, quartiles and both sample and population spread.
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