I took the table ozomatli posted and cleaned it up a bit and added some more information. The standard deviation is greatly impacted by the mean. For example, both fooolishfool and paulives have standard deviations = 0.82, but fooolishfool's mean is larger. Using a new term, the "coefficient of variation" is equal to St.Dev / Mean. In words, the coefficient of variation, also known as relative standard deviation (RSD), is a standardized measure of dispersion of a probability distribution or frequency distribution. My high standard deviation is offset a bit since my mean is so high. The following table is sorted by Coefficient of Variation.