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. 57.488, 52.14, 52.0, 52.0, 54.8, 52.805, 54.8, 53.96, 53.120, 54.59, 56.585, 54.1, 58.65, 52.77, 58.895, 55.5, 54.163, 57.334, 56.69, 56.809, 57.460, 53.61, 54.1, 52.749, 52.014, 58.3, 54.38, 54.87, 57.11, 52.0, 58.853, 56.62, 57.873, 56.2, 54.73, 56.298, 55.5, 54.10, 55.199, 58.37, 54.8, 58.51, 54.52, 53.568, 54.87, 52.77, 56.97, 56.55, 52.7, 52.0, 55.08, 52.0, 57.32, 56.2, 54.436, 52.322, 52.21, 56.83, 52.98, 54.1, 54.8, 55.010, 58.3, 55.717, 55.577, 56.2, 53.729, 53.190, 54.8, 55.115, 55.50, 56.2, 58.3, 53.33, 58.44, 54.8, 52.28, 53.463

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 78 Data element index 1 to 78 th  indexed value of () within the data table 1 to 78 Sum of all given numerical data 4295.022 Sum of All Data Arithmetic mean (average) of sample or population 55.064384615385 Arithmetic Mean  Sum of squares of all differences from the mean  314.653982461538 Sample variance 4.086415356643 Sample Variance Standard deviation within sample ± 2.021488401313 Sample Standard Deviation Population variance 4.034025416174 Population Variance Standard deviation within population ± 2.00848834106 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025