ALL meanings of standard deviation
stand·ard de·vi·a·tion
S s - noun standard deviation a measure of dispersion in a frequency distribution, equal to the square root of the mean of the squares of the deviations from the arithmetic mean of the distribution. 1
- noun standard deviation a measure of dispersion obtained by extracting the square root of the mean of the squared deviations of the observed values from their mean in a frequency distribution 0
- noun standard deviation a measure of variability equal to the square root of the arithmetic average of the squares of the deviations from the mean in a frequency distribution 0