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. 68.928, 67.118, 68.736, 67.424, 67.4, 67.580, 68.0, 67.0, 67.164, 67.2, 67.654, 67.6, 67.38, 68.4, 67.770, 68.46, 67.6, 68.394, 68.6, 67.104, 67.336, 68.92, 67.14, 68.16, 67.2, 67.76, 68.610, 67.02, 67.10, 68.4, 67.2, 67.988, 68.256, 67.66, 68.4, 68.56, 67.4, 68.58, 68.2, 67.082, 68.4, 67.0, 67.2, 68.02, 67.26, 67.886, 67.46, 68.2, 67.4, 67.050, 67.8, 67.614, 68.062, 68.6, 68.0, 68.128, 68.48, 67.4, 67.274, 68.198, 67.72, 68.36, 67.34, 68.722, 67.482, 67.822, 68.228, 68.04, 68.84, 68.954, 67.8, 68.268, 68.08, 68.656, 67.2, 67.46, 67.24

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 77 Data element index 1 to 77 th  indexed value of () within the data table 1 to 77 Sum of all given numerical data 5224.127999999999 Sum of All Data Arithmetic mean (average) of sample or population 67.845818181818 Arithmetic Mean  Sum of squares of all differences from the mean  24.923649454545 Sample variance 0.327942755981 Sample Variance Standard deviation within sample ± 0.572662864154 Sample Standard Deviation Population variance 0.32368375915 Population Variance Standard deviation within population ± 0.568932121742 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025