Standard deviation is the measure of the variability (or spread) of the values in a data set. It can be applied to a population or a smaller, sample data set. The formulas for standard deviation for a set {x3, x2, ... ,xn } is
where xi are the elements in the set {x1, x2, ... ,xn } and x is the mean of the data set.
Friday, February 11, 2011
Word of the Week: Standard Deviation
