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. 97.490, 95.5, 96.80, 95.45, 96.975, 96.510, 97.5, 97.30, 98.365, 96.080, 94.60, 94.5, 98.245, 96.65, 94.95, 96.055, 97.5, 98.0, 98.5, 98.720, 94.20, 97.5, 97.35, 97.35, 98.5, 94.05, 97.35, 95.85, 95.70, 96.215, 95.0, 97.80, 98.30, 96.0, 98.915, 96.5, 97.5, 98.95, 96.90, 95.335, 96.085, 94.5, 98.0, 96.350, 98.5, 96.90, 96.25, 94.5, 98.080, 98.0, 96.35, 94.640, 97.550, 98.5, 97.0, 94.65, 98.140, 97.0, 98.205, 95.015, 94.10, 94.30, 96.5, 95.5, 96.440, 95.40, 95.875, 96.70, 97.5, 98.0, 98.60, 97.0, 95.525, 94.670, 97.695, 94.50, 98.05, 94.0, 94.155, 98.0, 95.95, 96.10, 97.085, 95.0, 96.175, 96.855, 95.0, 98.630, 96.210, 95.35, 94.355, 96.5, 95.5, 98.585

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Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 94 Data element index 1 to 94 th  indexed value of () within the data table 1 to 94 Sum of all given numerical data 9074.974999999999 Sum of All Data Arithmetic mean (average) of sample or population 96.542287234043 Arithmetic Mean  Sum of squares of all differences from the mean  183.800983244681 Sample variance 1.976354658545 Sample Variance Standard deviation within sample ± 1.405828815519 Sample Standard Deviation Population variance 1.955329608986 Population Variance Standard deviation within population ± 1.398331008376 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026