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. 70.95, 71.335, 65.35, 67.8, 69.48, 65.973, 71.566, 67.254, 68.57, 65.84, 70.495, 71.58, 65.63, 65.721, 66.19, 68.08, 66.4, 70.88, 67.1, 67.1, 69.62, 66.40, 67.10, 71.3, 70.859, 69.2, 70.95, 65.98, 71.342, 65.784, 69.781, 66.75, 69.578, 68.766, 66.4, 66.40, 71.72, 67.408, 71.804, 69.9, 71.79

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 41 Data element index 1 to 41 th  indexed value of () within the data table 1 to 41 Sum of all given numerical data 2812.126 Sum of All Data Arithmetic mean (average) of sample or population 68.58843902439 Arithmetic Mean  Sum of squares of all differences from the mean  197.787594097561 Sample variance 4.944689852439 Sample Variance Standard deviation within sample ± 2.22366585899 Sample Standard Deviation Population variance 4.824087660916 Population Variance Standard deviation within population ± 2.196380581984 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026