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. 24.2, 24.944, 23.8, 23.0, 23.0, 23.832, 23.680, 24.2, 23.622, 24.76, 23.90, 23.26, 24.2, 24.854, 24.78, 24.64, 23.8, 24.840, 24.8, 23.644, 23.2, 23.12, 24.4, 23.368, 24.30, 24.4, 23.526, 23.90, 24.2, 24.412, 23.0, 24.32, 24.2, 23.52, 24.4, 24.8, 24.6, 24.4, 24.142, 23.0, 24.2, 24.258, 24.26, 24.2, 24.12, 24.88, 24.692, 24.364, 24.8, 24.8, 24.776, 23.04, 23.8, 23.218, 24.22, 23.956, 24.402, 24.8, 24.4, 24.410, 23.6, 23.02, 24.822, 24.044, 24.6, 23.8, 24.332, 23.8, 24.0, 23.132, 24.84, 23.6, 23.74, 24.0, 23.92, 24.990, 23.32, 23.6, 23.64, 24.8, 24.058, 23.8, 23.70, 24.0, 23.4, 23.86, 24.58, 24.062

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 88 Data element index 1 to 88 th  indexed value of () within the data table 1 to 88 Sum of all given numerical data 2117.62 Sum of All Data Arithmetic mean (average) of sample or population 24.063863636364 Arithmetic Mean  Sum of squares of all differences from the mean  27.258030363636 Sample variance 0.313310693835 Sample Variance Standard deviation within sample ± 0.559741631322 Sample Standard Deviation Population variance 0.309750345041 Population Variance Standard deviation within population ± 0.556552194355 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025