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 that values are spread out over a wider range.
How to Use
- Enter your dataset (numbers separated by commas or spaces)
- Click Calculate
- View the mean, variance, and standard deviation
Formula
Standard Deviation (σ) = √(Σ(xi - μ)² / N)
Where: μ is the mean, xi are the data points, N is the number of data points