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. 34.2, 35.328, 33.3, 35.97, 33.15, 34.563, 33.915, 34.2, 33.720, 33.96, 34.35, 33.750, 33.63, 35.412, 33.936, 34.14, 34.911, 35.7, 35.49, 35.19, 33.0, 35.4, 35.46, 33.96, 33.702, 35.19, 34.572, 35.7, 35.367, 34.5, 33.909, 34.809, 35.367, 33.0, 35.4, 33.96, 34.2, 34.2, 34.5, 35.316, 34.896, 34.11, 33.63, 33.3, 34.599, 34.68, 33.6, 34.38, 35.04, 33.9, 34.923, 33.9

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 52 Data element index 1 to 52 th  indexed value of () within the data table 1 to 52 Sum of all given numerical data 1791.285000000001 Sum of All Data Arithmetic mean (average) of sample or population 34.447788461538 Arithmetic Mean  Sum of squares of all differences from the mean  30.619714673077 Sample variance 0.600386562217 Sample Variance Standard deviation within sample ± 0.774846153902 Sample Standard Deviation Population variance 0.58884066679 Population Variance Standard deviation within population ± 0.76735954206 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026