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. 45.6, 45.12, 46.6, 46.20, 45.972, 46.140, 46.36, 46.4, 45.2, 46.68, 46.0, 45.2, 46.546, 46.44, 45.38, 46.74, 45.2, 45.0, 46.422, 46.90, 45.4, 46.94, 45.0, 45.766, 46.240, 45.24, 46.142, 46.900, 45.2, 46.622, 46.72, 46.56, 46.8, 46.316, 46.078, 45.48, 45.4, 45.0, 46.00, 46.704, 46.0, 45.8, 45.6, 46.42, 45.0, 46.04, 45.646, 46.82, 45.06, 46.0, 46.32, 46.8, 46.798, 45.00, 46.0, 46.08, 46.8, 45.86, 45.2, 46.6, 45.4, 46.50, 45.24, 45.0, 45.0, 45.0, 45.618, 46.2, 46.14, 45.34, 46.60, 45.856, 46.74, 45.68, 45.0, 45.4, 46.82, 46.4, 45.98, 46.0, 46.738, 45.8, 45.08, 45.566, 46.8, 45.20, 46.840, 46.12, 45.44, 46.0, 46.56, 45.90, 45.154, 45.70, 46.66, 46.4

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 96 Data element index 1 to 96 th  indexed value of () within the data table 1 to 96 Sum of all given numerical data 4412.324000000001 Sum of All Data Arithmetic mean (average) of sample or population 45.961708333333 Arithmetic Mean  Sum of squares of all differences from the mean  36.607079833333 Sample variance 0.385337682456 Sample Variance Standard deviation within sample ± 0.620755734936 Sample Standard Deviation Population variance 0.381323748264 Population Variance Standard deviation within population ± 0.617514168472 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025