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. 32.189, 32.073, 32.697, 32.156, 32.491, 32.0, 32.2, 32.659, 32.1, 32.0, 32.35, 32.298, 32.5, 32.636, 32.95, 32.17, 32.27, 32.927, 32.377, 32.7, 32.43, 32.253, 32.28, 32.5, 32.8, 32.3, 32.6, 32.382, 32.01, 32.226, 32.61, 32.640, 32.85, 32.877, 32.3, 32.7, 32.32, 32.7, 32.029, 32.25, 32.7, 32.55, 32.0, 32.4, 32.30, 32.88, 32.7, 32.60, 32.88, 32.30, 32.70, 32.685, 32.00, 32.182, 32.166, 32.4, 32.84, 32.6, 32.504, 32.3, 32.268, 32.56, 32.5, 32.096, 32.9, 32.7, 32.50, 32.633, 32.65, 32.22, 32.28, 32.414, 32.422, 32.2, 32.9, 32.06, 32.005, 32.29, 32.79, 32.48, 32.87, 32.117, 32.61, 32.38, 32.13, 32.046, 32.43, 32.56, 32.1, 32.49, 32.601, 32.712, 32.2, 32.6, 32.21, 32.63, 32.61, 32.32, 32.75

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 99 Data element index 1 to 99 th  indexed value of () within the data table 1 to 99 Sum of all given numerical data 3211.721 Sum of All Data Arithmetic mean (average) of sample or population 32.441626262626 Arithmetic Mean  Sum of squares of all differences from the mean  6.911257171717 Sample variance 0.070523032364 Sample Variance Standard deviation within sample ± 0.265561729857 Sample Standard Deviation Population variance 0.069810678502 Population Variance Standard deviation within population ± 0.264217104863 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025