What does a low standard deviation indicate?

Standard Deviation Calculator - Sample & Population (s & σ)

Calculate sample standard deviation (s), population standard deviation (σ), variance, mean, and sum of squares from any list of comma-separated numbers.

⚙️ Configuration & Inputs

Enter Data Set (Comma or Space Separated)

📊 Results & Analysis

Sample Standard Deviation (s)

13.01

Mean (Average): 31.38 • Count: 8

Sample Standard Deviation (s)	13.01
Population Standard Deviation (σ)	12.17
Sample Variance (s²)	169.41
Mean (Average μ)	31.38
Sum of Data (Σx)	251.00

Sample vs. Population Standard Deviation

Use Sample Standard Deviation (divided by n - 1, Bessel's correction) when analyzing a representative subset of a larger population. Use Population Standard Deviation (divided by N) when analyzing every single member of the population.

Frequently Asked Questions

A low standard deviation means data points cluster tightly around the average mean, while a high standard deviation indicates wide spread and volatility.