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. 86.12, 84.288, 87.140, 85.6, 86.116, 86.704, 86.8, 86.4, 84.348, 86.44, 85.84, 85.40, 85.632, 84.4, 87.572, 87.00, 87.92, 85.20, 86.92, 85.88, 84.16, 84.4, 84.0, 84.68, 87.2, 85.64, 85.6, 86.20, 87.100, 84.0, 86.04, 86.56, 87.672, 86.4, 85.816, 85.2, 85.388, 86.236, 86.016, 85.76, 84.76, 87.2, 84.020, 86.8, 85.656, 84.040, 85.40, 87.6, 85.72, 85.2, 85.16, 84.64, 84.68, 87.20, 84.8, 87.28, 84.316, 84.664, 84.68, 85.16, 85.48, 84.4, 85.40, 86.8

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Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 64 Data element index 1 to 64 th  indexed value of () within the data table 1 to 64 Sum of all given numerical data 5486.843999999999 Sum of All Data Arithmetic mean (average) of sample or population 85.7319375 Arithmetic Mean  Sum of squares of all differences from the mean  73.72907175 Sample variance 1.17030272619 Sample Variance Standard deviation within sample ± 1.08180530882 Sample Standard Deviation Population variance 1.152016746094 Population Variance Standard deviation within population ± 1.073320430297 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026