Standard Deviation Calculator
Enter numbers separated by commas, spaces, or line breaks
Sample: Use when data represents a sample from a larger population
Population: Use when data represents the entire population
Population: Use when data represents the entire population
About Standard Deviation
Standard deviation measures the amount of variation or dispersion in a set of values. A low standard deviation indicates that values tend to be close to the mean, while a high standard deviation indicates values are spread out over a wider range.
Formulas:
Sample Standard Deviation: σ = √(Σ(x - μ)² / (n - 1))
Population Standard Deviation: σ = √(Σ(x - μ)² / n)