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. 46.356, 48.240, 50.64, 47.046, 45.228, 45.0, 50.28, 49.8, 48.72, 45.6, 45.726, 49.2, 49.8, 47.580, 48.66, 48.06, 47.4, 47.10, 45.36, 48.6, 49.188, 49.8, 45.6, 48.78, 46.92, 48.6, 50.4, 47.496, 46.50, 50.04, 45.414, 46.02, 49.14, 49.92, 49.080, 46.74, 45.6, 47.292, 49.2, 48.966, 48.18, 47.760, 45.438, 46.2, 47.4, 48.48, 47.508

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 47 Data element index 1 to 47 th  indexed value of () within the data table 1 to 47 Sum of all given numerical data 2246.058 Sum of All Data Arithmetic mean (average) of sample or population 47.788468085106 Arithmetic Mean  Sum of squares of all differences from the mean  121.584345702128 Sample variance 2.643137950046 Sample Variance Standard deviation within sample ± 1.625773031529 Sample Standard Deviation Population variance 2.586900972386 Population Variance Standard deviation within population ± 1.608384584726 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025