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. 99.23, 99.361, 99.6, 99.3, 99.94, 99.6, 99.00, 99.152, 99.686, 99.816, 99.6, 99.405, 99.732, 99.99, 99.856, 99.624, 99.0, 99.433, 99.552, 99.1, 99.36, 99.60, 99.5, 99.6, 99.0, 99.77, 99.60, 99.134, 99.013, 99.62, 99.60, 99.27, 99.559, 99.4, 99.8, 99.22, 99.9, 99.8, 99.2, 99.39, 99.5, 99.2, 99.900, 99.6, 99.87, 99.1, 99.108, 99.435, 99.83, 99.406, 99.39, 99.699, 99.97, 99.85, 99.2, 99.4, 99.24, 99.82, 99.72, 99.8, 99.6, 99.244, 99.202, 99.0, 99.69, 99.77, 99.1, 99.29, 99.669, 99.73, 99.411, 99.1, 99.464, 99.9

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 74 Data element index 1 to 74 th  indexed value of () within the data table 1 to 74 Sum of all given numerical data 7362.521000000001 Sum of All Data Arithmetic mean (average) of sample or population 99.493527027027 Arithmetic Mean  Sum of squares of all differences from the mean  5.849580445946 Sample variance 0.080131238986 Sample Variance Standard deviation within sample ± 0.283074617346 Sample Standard Deviation Population variance 0.079048384405 Population Variance Standard deviation within population ± 0.281155445269 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025