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. 35.0, 33.0, 35.5, 36.795, 35.10, 34.00, 35.675, 34.5, 37.920, 33.0, 33.0, 34.50, 36.75, 34.275, 34.5, 35.445, 35.40, 33.0, 37.70, 36.5, 35.5, 33.35, 33.0, 33.85, 35.755, 36.85, 35.5, 35.20, 33.45, 34.40, 33.25, 37.700, 35.905, 33.75, 34.80, 35.00, 34.985, 37.15, 37.5, 36.635, 34.705, 35.0, 35.0, 34.5, 34.90, 35.875, 34.0, 33.40, 37.45, 33.5, 36.50, 35.900, 35.100, 34.0, 36.455, 35.10, 34.75, 37.390, 34.985, 33.0, 33.10, 33.110, 33.290, 34.435, 34.90, 36.00, 37.385, 33.445, 35.5, 37.5, 35.935, 35.0, 34.0, 37.70, 34.0, 33.775

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Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 76 Data element index 1 to 76 th  indexed value of () within the data table 1 to 76 Sum of all given numerical data 2665.675000000001 Sum of All Data Arithmetic mean (average) of sample or population 35.074671052632 Arithmetic Mean  Sum of squares of all differences from the mean  151.539966776316 Sample variance 2.020532890351 Sample Variance Standard deviation within sample ± 1.421454498164 Sample Standard Deviation Population variance 1.993946931267 Population Variance Standard deviation within population ± 1.412071857685 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026