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. 503.18918, 505.34387, 500.72179, 503.22606, 504.18164, 503.53343, 504.38342, 504.25942, 500.45252, 504.79086, 501.84559, 502.53277, 504.63563, 504.69585, 502.6445, 504.08472, 500.42518, 503.25714, 504.06287, 501.39211, 502.00426, 505.13738, 505.4449, 502.76021, 501.05333, 502.74031, 505.71102, 500.93704, 500.76069, 505.82299, 503.97218, 504.65393, 501.87029, 502.77248, 504.67937, 503.84624, 503.66608, 503.86528, 502.48904, 505.7385, 502.10324, 502.83416, 502.40435, 504.14428, 500.54077, 502.86555, 502.08471 Statistics Computed From The Data Given Above Mathematical Expression  Numerical Evaluation  Data count 47 Data index 1 to 47 Sum of all given data 23650.56113 Arithmetic mean of population or sample 503.20342829787  Sum of squares of all differences from mean  109.45795329806 Population variance 2.3288926233631 Population standard deviation ± 1.5260709758602 Sample variance 2.3795207238709 Sample standard deviation ± 1.5425695199475 Program by Jay Tanner - 2026 - v2.21