Variance and Standard Deviation Statistics Calculator PHP Program by Jay Tanner

Simply enter the delimited numerical data table/string and click [COMPUTE]. The numerical data elements can be separated by commas, spaces or semicolons. The initial example data is randomly generated.  Copy/Paste/Replace with your own data table. 59.5, 57.670, 60.865, 59.120, 60.10, 58.0, 60.830, 56.0, 60.95, 57.5, 59.0, 60.85, 56.90, 56.25, 58.485, 57.5, 59.25, 59.0, 60.005, 60.75, 59.15, 57.955, 60.5, 60.80, 60.00, 59.35, 59.0, 60.95, 60.10, 57.0, 58.95, 57.0, 57.25, 56.30, 58.050, 56.0, 60.10, 56.5, 58.60, 57.325, 57.685, 60.0, 60.0, 56.80, 59.35, 57.825, 58.310, 60.60, 56.535, 57.50, 56.0, 60.5, 57.500, 57.5, 59.0, 59.755, 58.65, 59.165, 60.30, 60.80, 57.15, 58.625

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 62 Data element index 1 to 62 th  indexed value of () within the data table 1 to 62 Sum of all given numerical data 3638.955 Sum of All Data Arithmetic mean (average) of sample or population 58.692822580645 Arithmetic Mean  Sum of squares of all differences from the mean  140.138181048387 Sample variance 2.297347230301 Sample Variance Standard deviation within sample ± 1.515700244211 Sample Standard Deviation Population variance 2.260293242716 Population Variance Standard deviation within population ± 1.50342716575 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026