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. 94.128, 93.280, 91.8, 90.872, 91.472, 94.696, 90.28, 87.0, 88.12, 88.880, 90.880, 87.88, 87.0, 90.2, 87.648, 94.2, 87.8, 88.6, 87.0, 92.296, 94.2, 94.84, 91.8, 87.8, 91.8, 88.6, 90.024, 88.024, 89.16, 90.2, 89.64, 89.512, 93.4, 89.216, 91.688, 93.00, 91.880, 88.60, 92.60, 90.784, 93.24, 92.512, 89.272, 89.00, 88.44, 93.448, 88.76, 90.68, 94.640, 93.48, 92.52, 89.088, 91.8, 88.840, 91.448, 91.56, 87.688, 90.76, 94.20, 90.92, 92.784, 90.088, 92.408, 88.6, 91.8, 92.76, 90.2, 88.6, 88.6, 87.0, 91.8, 91.0, 87.8, 91.48, 94.2

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 75 Data element index 1 to 75 th  indexed value of () within the data table 1 to 75 Sum of all given numerical data 6802.216000000002 Sum of All Data Arithmetic mean (average) of sample or population 90.696213333333 Arithmetic Mean  Sum of squares of all differences from the mean  365.593852586667 Sample variance 4.940457467387 Sample Variance Standard deviation within sample ± 2.222713986861 Sample Standard Deviation Population variance 4.874584701156 Population Variance Standard deviation within population ± 2.20784616791 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2026