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. 61.545, 61.450, 63.5, 62.35, 64.80, 65.5, 65.315, 63.0, 61.90, 63.5, 63.0, 63.0, 65.5, 64.5, 62.440, 64.65, 65.640, 63.755, 63.540, 62.575, 63.65, 65.475, 62.5, 65.260, 61.5, 64.10, 63.65, 61.70, 61.925, 63.80, 63.85, 64.5, 62.55, 61.750, 62.600, 62.60, 65.125, 63.15, 62.025, 63.35, 61.0, 65.70, 63.735, 65.5, 65.410, 61.5, 65.800, 61.0, 61.5, 62.0, 62.140, 61.75, 65.740, 62.675, 62.10, 64.85, 61.010, 61.0, 62.85, 65.0, 61.700, 63.640, 63.40, 63.180, 65.565, 65.00, 61.5, 61.335, 63.05, 63.35, 61.020, 65.515

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 72 Data element index 1 to 72 th  indexed value of () within the data table 1 to 72 Sum of all given numerical data 4557.035000000001 Sum of All Data Arithmetic mean (average) of sample or population 63.292152777778 Arithmetic Mean  Sum of squares of all differences from the mean  160.469191319444 Sample variance 2.260129455203 Sample Variance Standard deviation within sample ± 1.503372693381 Sample Standard Deviation Population variance 2.228738768326 Population Variance Standard deviation within population ± 1.492896100981 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025