Standard Deviation Calculator
Calculate standard deviation, variance, mean, and count of a comma-separated dataset.
Sample Standard Deviation (s)
0
Population Standard Deviation (σ)
0
Mean (Average)
0
Variance
0
Formula & Calculation Details
Mean (μ) = Sum(x) / N. Population Variance (σ²) = Sum((x - μ)²) / N. Sample Variance (s²) = Sum((x - μ)²) / (N - 1). Standard deviation is the square root of variance.
Frequently Asked Questions
Population standard deviation measures dispersion in the entire dataset (divided by N). Sample standard deviation is used to estimate dispersion in a larger population using a sample dataset (divided by N-1, known as Bessel's correction).
Yes. All calculations utilize standard mathematical formulas implemented with high decimal precision to guarantee completely accurate results for academic homework and study checks.
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Yes. Simply click the 'Save PDF' button or press Ctrl+P. The print stylesheet will format the calculation inputs, charts, and tables into a clean, presentation-ready document.