Standard deviation

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Changed: 1c1

The standard deviation, generally denoted σ, is the most commonly used measure of dispersion which is measured with the same units as the data. It is easily calculated as the square root of the variance. It can never be a negative number since we always use the positive square root.

The standard deviation, generally denoted σ, is the most commonly used measure of dispersion which is measured with the same units as the data. It is easily calculated as the square root of the variance. It can never be a negative number since we always use the positive square root.

Changed: 3c3

back to statistical dispersion

See also Statistical dispersion.

The standard deviation, generally denoted σ, is the most commonly used measure of dispersion which is measured with the same units as the data. It is easily calculated as the square root of the variance. It can never be a negative number since we always use the positive square root.

See also Statistical dispersion.