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. 99.08, 98.10, 98.4, 99.120, 99.94, 98.76, 98.98, 98.014, 98.790, 99.2, 98.864, 98.26, 99.4, 99.06, 99.0, 99.444, 99.2, 99.8, 99.010, 98.146, 98.8, 98.6, 99.2, 99.8, 98.2, 99.692, 99.12, 99.168, 99.64, 98.46, 99.14, 99.8

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 32 Data element index 1 to 32 th  indexed value of () within the data table 1 to 32 Sum of all given numerical data 3168.188 Sum of All Data Arithmetic mean (average) of sample or population 99.005875 Arithmetic Mean  Sum of squares of all differences from the mean  8.9261275 Sample variance 0.287939596774 Sample Variance Standard deviation within sample ± 0.536600034266 Sample Standard Deviation Population variance 0.278941484375 Population Variance Standard deviation within population ± 0.528149111876 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025