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. 68.874, 62.56, 65.227, 63.092, 68.3, 63.19, 66.9, 63.344, 64.1, 66.011, 66.543, 66.9, 62.7, 66.165, 62.21, 67.117, 64.415, 65.08, 64.73, 66.893, 62.49, 65.92, 64.8, 66.914, 64.072, 62.0, 66.067, 67.04, 66.2, 64.1, 64.240, 63.05, 64.45, 65.92, 62.49, 62.63, 62.7, 63.834, 68.3, 65.129, 62.7, 67.6, 63.4, 67.11, 62.630, 62.168, 67.005, 63.4, 64.1, 65.339, 67.6, 66.20, 64.1, 66.97, 66.2, 62.826, 67.95, 68.3, 64.8, 64.947, 68.587, 66.76, 64.8, 63.82, 68.23, 64.8, 64.1, 63.4, 64.513, 63.4, 66.074, 67.6, 64.52, 65.57, 63.40, 62.7, 62.98, 65.402, 66.9, 64.24, 66.9, 65.5, 64.59, 63.05, 63.4, 66.2, 65.5, 62.7, 62.28, 67.6, 68.3, 64.1, 67.726, 64.10, 63.715, 66.9, 64.289, 65.5

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Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 98 Data element index 1 to 98 th  indexed value of () within the data table 1 to 98 Sum of all given numerical data 6376.187999999996 Sum of All Data Arithmetic mean (average) of sample or population 65.063142857143 Arithmetic Mean  Sum of squares of all differences from the mean  333.953996 Sample variance 3.442824701031 Sample Variance Standard deviation within sample ± 1.855485031206 Sample Standard Deviation Population variance 3.407693836735 Population Variance Standard deviation within population ± 1.845993996939 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026