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. 41.096, 41.390, 41.22, 40.4, 41.646, 40.22, 41.40, 40.28, 40.06, 41.04, 40.4, 40.550, 40.2, 40.0, 41.44, 40.8, 40.110, 41.4, 41.186, 40.26, 41.352, 41.58, 41.8, 40.6, 40.0, 41.2, 40.6, 40.8, 41.40, 41.40, 40.506, 41.176, 41.406, 40.886, 41.938, 40.68, 40.832, 41.92, 41.192, 40.2, 40.62, 41.0, 40.72, 40.36, 40.12, 40.576, 40.788, 41.78, 41.012, 40.96, 40.100, 40.448, 40.32, 40.252, 41.312, 40.8, 41.248, 41.462, 40.04, 41.278, 41.22, 40.4, 40.900, 41.80, 41.04, 40.90, 41.16, 40.38, 40.98, 41.00, 40.82, 41.302, 41.968, 40.842, 41.778, 40.0, 41.392

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 77 Data element index 1 to 77 th  indexed value of () within the data table 1 to 77 Sum of all given numerical data 3149.644 Sum of All Data Arithmetic mean (average) of sample or population 40.904467532468 Arithmetic Mean  Sum of squares of all differences from the mean  22.347959168831 Sample variance 0.294052094327 Sample Variance Standard deviation within sample ± 0.542265704546 Sample Standard Deviation Population variance 0.290233235959 Population Variance Standard deviation within population ± 0.538732991341 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025