Current Sherman County, Texas Population, Demographics and stats in 2016, 2015.
Mean female height: 64 in. Standard deviation: 2.8. Out of 100 million adult females in the US, less than 5 million of them are taller than 68.2 inches, or 5 8.2. Out of 100 million adult males, less than 5 million are shorter than 66 inches, or 5 .
DEFINITION of 'Standard Deviation'. 1. A measure of the dispersion of a set of data from its mean. The more spread apart the data, the higher the deviation. Standard deviation is calculated as the square root of variance.2. In finance, standard deviation is applied to the annual rate of return of an investment to measure the investment's volatility.Standard deviation is also known as historical volatility and is used by investors as a gauge for the amount of expected volatility. measure of the dispersion of a set of data from its mean. The more spread apart the data, the higher the deviation. Standard deviation is calculated as the square root of variance. 2.