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. 11.32, 11.886, 11.04, 12.268, 11.740, 11.24, 12.80, 11.10, 12.50, 12.708, 11.448, 12.2, 11.54, 11.318, 11.4, 11.60, 11.364, 11.8, 12.2, 11.64, 11.96, 11.68, 12.88, 12.46, 12.94, 11.8, 11.096, 12.22, 11.8, 11.532, 12.2, 11.4, 11.6, 11.2, 12.0, 12.572, 11.74, 12.0, 12.8, 12.8, 12.360, 12.44, 11.8, 12.2, 12.2, 12.814, 12.48, 11.4, 12.298, 11.16, 12.24, 11.64, 11.48, 11.2, 12.30, 11.4, 11.892, 11.640, 12.40, 11.784, 11.6, 11.824, 11.2, 11.82, 11.64, 11.22, 11.74, 12.8, 11.874, 12.70, 12.10, 12.8, 11.2, 12.884, 11.94, 11.2, 12.0, 11.954, 12.2

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Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 79 Data element index 1 to 79 th  indexed value of () within the data table 1 to 79 Sum of all given numerical data 941.616 Sum of All Data Arithmetic mean (average) of sample or population 11.919189873418 Arithmetic Mean  Sum of squares of all differences from the mean  21.926084151899 Sample variance 0.281103642973 Sample Variance Standard deviation within sample ± 0.530192081206 Sample Standard Deviation Population variance 0.277545369011 Population Variance Standard deviation within population ± 0.526825748243 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026