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. 38.0, 42.8, 39.830, 40.844, 38.0, 43.4, 39.398, 43.4, 39.014, 40.244, 42.386, 39.44, 40.898, 39.8, 39.770, 38.66, 43.712, 39.896, 40.676, 43.502, 38.0, 38.210, 43.688, 40.922, 38.222, 41.924, 38.144, 42.50, 38.174, 39.614, 42.872, 38.774, 38.300, 41.348, 43.58, 39.20, 42.74, 38.0, 39.386, 38.288, 43.34, 38.06, 39.326, 41.6, 41.408, 38.30, 40.4, 42.260, 38.96, 41.0, 42.8, 41.60, 41.36, 43.76, 39.62, 40.82, 42.8, 39.2, 41.6, 43.364, 42.914, 38.6, 40.76, 42.758, 42.56, 42.998, 42.110, 38.948, 42.044, 38.204, 41.6, 41.162, 38.0, 41.960, 43.904, 43.772, 43.832, 43.88, 40.10, 40.04, 41.0, 41.120, 39.02, 42.8, 40.4, 42.8, 38.48, 38.6

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Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 88 Data element index 1 to 88 th  indexed value of () within the data table 1 to 88 Sum of all given numerical data 3591.5 Sum of All Data Arithmetic mean (average) of sample or population 40.8125 Arithmetic Mean  Sum of squares of all differences from the mean  323.792586 Sample variance 3.721753862069 Sample Variance Standard deviation within sample ± 1.929184766182 Sample Standard Deviation Population variance 3.679461204545 Population Variance Standard deviation within population ± 1.918192170911 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026