【實用教育app】Standard Deviation Calculator|最夯免費app-綠色工廠好玩App

This application calculate the Mean, Standard deviation, Variance of Standard deviation, Population Standard deviation, and Variance of Population Standard deviation.

Standard deviation is a statistical measure of spread or variability. Variance Definition is a measure of the degree of spread among a set of values; a measure of the tendency of individual values to vary from the mean value.