# Standard Deviation

Standard Deviation is a widely used measure of variability or diversity used in statistics and probability theory. Standard Deviation shows how much variation or "dispersion" exists from the average (mean, or expected value).

# Standard deviation

**Standard Deviation** is a widely used measure of variability or diversity used in statistics and probability theory.

## Interpretation of Standard Deviation

Standard Deviation shows how much variation or "dispersion" exists from the average (mean, or expected value). A low Standard Deviation indicates that the data points tend to be very close to the mean, whereas high Standard Deviation indicates that the data points are spread out over a large range of values.