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. 55.7, 55.280, 54.5, 54.44, 54.71, 55.7, 53.66, 53.0, 53.057, 53.9, 55.868, 54.110, 55.88, 54.476, 54.227, 55.22, 54.2, 55.592, 54.5, 55.340, 55.424, 55.85, 54.50, 55.931, 55.76, 55.52, 55.1, 55.4, 55.31, 54.950, 55.43, 53.732, 53.954, 55.898, 55.04, 55.88, 55.16, 53.918, 55.895, 55.7, 53.612, 53.12, 55.43, 53.12, 53.6, 53.18, 53.3, 53.6, 54.668, 54.059, 54.5, 54.2, 53.0, 53.6, 53.3, 54.947, 54.5, 55.91, 54.8, 55.325, 55.1, 53.66, 53.6, 54.8, 54.20, 54.98, 54.8, 54.8, 55.1, 53.9, 54.2, 55.28

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 72 Data element index 1 to 72 th  indexed value of () within the data table 1 to 72 Sum of all given numerical data 3933.902999999999 Sum of All Data Arithmetic mean (average) of sample or population 54.637541666667 Arithmetic Mean  Sum of squares of all differences from the mean  55.445879875 Sample variance 0.780927885563 Sample Variance Standard deviation within sample ± 0.883701242255 Sample Standard Deviation Population variance 0.770081664931 Population Variance Standard deviation within population ± 0.877542970418 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025