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. 28.050, 28.686, 27.117, 28.11, 27.306, 27.66, 29.85, 27.12, 27.87, 29.610, 28.053, 27.213, 29.07, 28.593, 27.3, 29.1, 28.17, 28.2, 28.701, 29.46, 27.3, 29.7, 27.0, 28.08, 27.66, 28.38, 27.93, 28.02, 27.3, 29.70, 29.919, 29.943, 28.59, 27.9, 28.26, 27.93, 29.418, 29.04, 29.112, 27.780, 28.62, 28.5, 29.1, 28.08

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 44 Data element index 1 to 44 th  indexed value of () within the data table 1 to 44 Sum of all given numerical data 1248.501 Sum of All Data Arithmetic mean (average) of sample or population 28.375022727273 Arithmetic Mean  Sum of squares of all differences from the mean  31.138576977273 Sample variance 0.72415295296 Sample Variance Standard deviation within sample ± 0.850971769778 Sample Standard Deviation Population variance 0.707694931302 Population Variance Standard deviation within population ± 0.841246058714 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025