Standard Deviation and Variance Statistics Calculator

Simply enter the delimited numerical data string/table and click [COMPUTE]. The numerical data elements can be separated by commas, spaces or semicolons. The initial example data is randomly generated.  Replace with your own data table. 501.31, 501.2129, 503.2631, 504.401, 505.9011, 502.4763, 505.1811, 501.3959, 501.0063, 501.3834, 503.9426, 501.9556, 501.6907, 503.1152, 500.1181, 501.2719, 502.2045, 505.3757, 501.2983, 502.326, 505.9445, 505.1228 Statistics Computed From The Data Given Above Mathematical Expression  Numerical Evaluation  Data count 22 Data index 1 to 22 Sum of all given data 11061.897 Arithmetic mean of population or sample 502.8135  Sum of squares of all differences from mean  67.72752228 Population variance 3.07852374 Population standard deviation ± 1.7545722384673 Sample variance 3.2251201085714 Sample standard deviation ± 1.795861940287 Program by Jay Tanner - 2025 - v2.21