Standard deviation is a statistic measuring the dispersion of a dataset relative to its mean. It is calculated as the square root of the variance. Learn how it's used.

While the average call time was close (4.5 minutes vs. 4.3) one team had a standard deviation of 1.5 minutes, while the other ...

Standard deviation measures how data is dispersed relative to its mean and is calculated as the square root of its variance. The further the data points are, the higher the deviation. Closer data ...