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. 500.80358, 500.85083, 504.32701, 502.06568, 505.86279, 505.9993, 500.02051, 501.58587, 501.51585, 503.81041, 503.18956, 502.90354, 505.18037, 502.66859, 502.95854, 505.2614, 502.05499, 503.84667 Statistics Computed From The Data Given Above Mathematical Expression  Numerical Evaluation  Data count 18 Data index 1 to 18 Sum of all given data 9054.90549 Arithmetic mean of population or sample 503.050305  Sum of squares of all differences from mean  54.59413454585 Population variance 3.0330074747694 Population standard deviation ± 1.741553178852 Sample variance 3.2114196791676 Sample standard deviation ± 1.7920434367413 Program by Jay Tanner - 2025 - v2.21