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. 48.15, 48.5, 48.3, 48.32, 48.9, 48.16, 48.258, 48.25, 48.9, 48.7, 48.24, 48.869, 48.641, 48.46, 48.64, 48.033, 48.678, 48.30, 48.32, 48.998, 48.7, 48.654, 48.07, 48.624, 48.6, 48.492, 48.42, 48.87, 48.479, 48.0, 48.30, 48.51, 48.8, 48.3, 48.1, 48.157, 48.734, 48.93

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 38 Data element index 1 to 38 th  indexed value of () within the data table 1 to 38 Sum of all given numerical data 1842.357 Sum of All Data Arithmetic mean (average) of sample or population 48.483078947368 Arithmetic Mean  Sum of squares of all differences from the mean  2.950904763158 Sample variance 0.079754182788 Sample Variance Standard deviation within sample ± 0.282407830607 Sample Standard Deviation Population variance 0.077655388504 Population Variance Standard deviation within population ± 0.278667164381 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025