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. 504, 504, 501, 504, 501, 500, 502, 502, 505, 502, 503, 505, 502, 503, 502, 505, 504, 502, 504, 501, 505, 503, 501, 501, 502, 500, 502, 504, 505, 502, 504, 505, 505, 505, 505, 502, 502, 505, 501, 504, 504, 500, 502, 502, 500, 501, 504, 501 Statistics Computed From The Data Given Above Mathematical Expression  Numerical Evaluation  Data count 48 Data index 1 to 48 Sum of all given data 24133 Arithmetic mean of population or sample 502.77083333333  Sum of squares of all differences from mean  128.47916666667 Population variance 2.6766493055556 Population standard deviation ± 1.6360468531052 Sample variance 2.7335992907801 Sample standard deviation ± 1.6533600003569 Program by Jay Tanner - 2026 - v2.21