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. 90.44, 89.40, 88.8, 90.64, 91.88, 89.64, 88.116, 89.868, 91.2, 91.52, 90.8, 89.48, 89.2, 91.804, 88.4, 89.2, 90.4, 90.424, 91.6, 90.636, 90.500, 90.956, 91.552, 89.6, 89.6, 90.0, 91.180, 88.4, 88.796, 90.40, 91.2, 91.308, 90.064, 90.320, 89.68, 89.980, 89.624, 88.84, 90.4, 90.8, 90.96, 90.76, 88.4, 91.96, 90.720, 89.488, 91.6, 88.4, 91.884, 88.12, 89.08, 88.576, 89.08, 88.8, 88.772, 88.4, 91.96, 89.6, 90.960, 88.0, 89.2, 89.432, 91.2, 90.052, 88.8, 90.8

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 66 Data element index 1 to 66 th  indexed value of () within the data table 1 to 66 Sum of all given numerical data 5941.651999999999 Sum of All Data Arithmetic mean (average) of sample or population 90.02503030303 Arithmetic Mean  Sum of squares of all differences from the mean  83.276297939394 Sample variance 1.281173814452 Sample Variance Standard deviation within sample ± 1.131889488622 Sample Standard Deviation Population variance 1.261762089991 Population Variance Standard deviation within population ± 1.123281839073 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025