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. 63.080, 63.80, 65.30, 67.472, 62.384, 66.8, 62.762, 65.6, 63.068, 65.96, 66.56, 65.54, 64.04, 65.390, 65.678, 67.4, 63.290, 62.66, 65.0, 63.26, 64.4, 64.4, 65.6, 65.282, 65.12, 62.12, 66.824, 62.252, 62.6, 66.2, 67.82, 62.114, 66.356, 63.8, 66.098, 62.6, 62.36, 65.6, 63.794, 67.4, 63.74, 65.0, 66.92, 65.048, 65.06, 66.428, 62.54, 66.2, 62.72, 67.976, 63.20, 65.348, 65.42, 62.0, 65.30, 67.46, 66.8, 67.04, 66.92, 64.4, 63.38, 64.406, 62.6, 63.44, 63.284, 62.0, 65.90, 67.64

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Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 68 Data element index 1 to 68 th  indexed value of () within the data table 1 to 68 Sum of all given numerical data 4405.953999999999 Sum of All Data Arithmetic mean (average) of sample or population 64.793441176471 Arithmetic Mean  Sum of squares of all differences from the mean  208.482502764706 Sample variance 3.111679145742 Sample Variance Standard deviation within sample ± 1.763995222709 Sample Standard Deviation Population variance 3.065919158304 Population Variance Standard deviation within population ± 1.750976629857 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026