Standard Deviation: Two Calculation Methods

Standard Deviation: Two Calculation Methods

The standard deviation (SD) is a crucial statistical measure that quantifies the amount of variation or dispersion of a set of data values. It indicates how much individual data points deviate from the average, or mean, of the dataset. A low standard deviation suggests that data points tend to be close to the mean, while a high standard deviation indicates that data points are spread out over a wider range.