HOW IT IS CALCULATED
Measure how spread out values are
Calculate population or sample standard deviation from the deviations around the mean.
Instant resultClear formulaRuns locally
01Values
02√(Σ(x − mean)² ÷ N)
03Result
Lower deviation means values cluster closer to the mean.
Sample and population formulas use different divisors
Population standard deviation divides by N, while the sample version divides by N − 1.
02
In short
What logic does the calculator use?
√(Σ(x − mean)² ÷ N)
Example?
Lower deviation means values cluster closer to the mean.