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σ
MATH
Standard Deviation Calculator
Solve Standard Deviation with a transparent method.
How should the data be treated?Use sample when these values represent part of a larger group.
2 optionsDataset values8 of 100
Paste up to 100 values from a row, column, or spreadsheet.
STANDARD DEVIATION2.29128785
Population method; n = 8, mean = 4.5, variance = 5.25. Uses N for a population or N−1 for a sample, then reports count, sum, mean, variance, standard deviation, standard uncertainty, and a 95% uncertainty margin.
- Count
- 8
- Sum
- 36
- Mean
- 4.5
- Population variance
- 5.25
- Population standard deviation
- 2.29128785
- Standard error
- 0.81009259
- 95% margin of error
- 1.58778147
Formula checkedUses N for a population or N−1 for a sample, then reports count, sum, mean, variance, standard deviation, standard uncertainty, and a 95% uncertainty margin.