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, 500, 502, 502, 503, 500, 501, 505, 501, 503, 505, 502, 502, 504 Statistics Computed From The Data Given Above Mathematical Expression  Numerical Evaluation  Data count 14 Data index 1 to 14 Sum of all given data 7031 Arithmetic mean of population or sample 502.21428571429  Sum of squares of all differences from mean  34.357142857143 Population variance 2.4540816326531 Population standard deviation ± 1.5665508713901 Sample variance 2.6428571428571 Sample standard deviation ± 1.6256866681059 Program by Jay Tanner - 2026 - v2.21