Standard Deviation and Variance Statistics Calculator v2.1 - Jay Tanner - 2025

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. 772.9, 935.3, 698, 787.7, 602.4, 596.5, 530.4, 557.1, 973.7, 685, 611, 859.8, 997.5, 864.3, 995.3, 948, 744.4, 739.1, 559.2, 644.6, 958.3, 843.6, 525.1, 643.5, 535.8, 751.6, 954.4, 786.6, 674.8, 985.6, 694.5, 544.5, 953, 629.8, 996.7, 613.3, 641.8, 985.3, 587.7, 703.1 Statistics Computed From The Data Given Above Mathematical Expression  Numerical Evaluation  Data count 40 Data index 1 to 40 Sum of all given data 30111.2 Arithmetic mean of population or sample 752.78  Sum of squares of all differences from mean  1016830.944 Population variance 25420.7736 Population standard deviation ± 159.43893376462 Sample variance 26072.588307692 Sample standard deviation ± 161.47008486928