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. 87.464, 85.7, 83.180, 85.259, 83.09, 89.075, 84.8, 87.5, 91.46, 83.0, 91.550, 91.10, 83.684, 85.853, 86.96, 91.1, 88.652, 89.084, 83.324, 85.97, 86.942, 85.7, 84.836, 83.90, 84.8, 87.5, 83.018, 89.3, 85.862, 84.692, 88.409, 86.159, 84.872, 86.123, 88.184, 85.250, 89.3, 84.44, 86.960, 91.658, 83.0, 91.1, 88.4, 89.39, 83.99, 91.145, 83.9, 88.373, 85.637, 84.8, 90.65, 85.781, 89.66, 91.1, 90.659, 87.14, 87.248, 83.0, 86.6, 89.3, 90.002, 88.40, 83.81, 85.34, 88.868, 84.467, 91.829, 86.87, 90.2, 85.07, 85.7

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 71 Data element index 1 to 71 th  indexed value of () within the data table 1 to 71 Sum of all given numerical data 6177.139 Sum of All Data Arithmetic mean (average) of sample or population 87.001957746479 Arithmetic Mean  Sum of squares of all differences from the mean  494.556344873239 Sample variance 7.065090641046 Sample Variance Standard deviation within sample ± 2.658023822513 Sample Standard Deviation Population variance 6.965582322158 Population Variance Standard deviation within population ± 2.639238966475 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026