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. 54.46, 54.0, 54.330, 53.4, 54.14, 53.984, 54.38, 54.2, 54.6, 53.66, 53.16, 54.696, 53.840, 54.00, 53.070, 54.50, 53.02, 54.6, 53.2, 53.336, 54.826, 54.8, 53.720, 53.2, 53.688, 54.6, 54.0, 53.736, 53.2, 54.2, 54.96, 54.4, 53.8, 53.418, 54.08, 54.0, 53.928, 54.04, 54.502, 53.932

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 40 Data element index 1 to 40 th  indexed value of () within the data table 1 to 40 Sum of all given numerical data 2159.606 Sum of All Data Arithmetic mean (average) of sample or population 53.99015 Arithmetic Mean  Sum of squares of all differences from the mean  11.0661391 Sample variance 0.28374715641 Sample Variance Standard deviation within sample ± 0.532679224684 Sample Standard Deviation Population variance 0.2766534775 Population Variance Standard deviation within population ± 0.525978590344 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025