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. 65.892, 67.024, 64.764, 67.40, 65.968, 64.372, 65.940, 65.660, 65.00, 66.0, 66.4, 65.2, 65.116, 64.0, 64.20, 65.12, 67.6, 65.08, 66.04, 65.96, 65.56, 64.4, 67.76, 64.8, 66.520, 65.212, 65.468, 67.728, 65.6, 65.132, 66.24, 67.2, 64.796, 64.4, 67.32, 67.6, 65.08, 65.784, 64.8, 65.6, 66.008, 65.2, 66.4, 66.04, 66.8, 65.28, 64.68, 67.6, 65.6, 66.996, 66.932, 67.72, 66.64, 66.16, 67.6, 66.4, 65.836, 64.72, 67.28, 64.332, 66.32, 64.8, 67.24, 67.6, 64.28, 67.868, 67.856, 65.336, 65.620, 66.0, 67.56, 65.12, 66.4, 67.16, 64.412, 64.92, 65.08, 66.232, 66.4, 64.664, 66.60, 67.596, 67.2, 66.24, 64.8

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 85 Data element index 1 to 85 th  indexed value of () within the data table 1 to 85 Sum of all given numerical data 5607.263999999999 Sum of All Data Arithmetic mean (average) of sample or population 65.967811764706 Arithmetic Mean  Sum of squares of all differences from the mean  99.595740988235 Sample variance 1.185663583193 Sample Variance Standard deviation within sample ± 1.088881804051 Sample Standard Deviation Population variance 1.171714599862 Population Variance Standard deviation within population ± 1.082457666545 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025