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. 49.32, 47.8, 50.2, 47.20, 47.8, 49.0, 50.464, 48.6, 48.232, 47.48, 48.6, 50.2, 49.72, 50.96, 47.640, 50.152, 50.2, 49.828, 47.800, 49.48, 49.488, 48.6, 47.8, 48.88, 47.36, 49.4, 50.08, 47.28, 47.0, 47.12, 48.944, 50.2, 48.2, 47.520, 47.12, 47.712, 50.36, 48.36, 48.6, 47.0, 49.0, 50.68, 50.2, 47.20, 49.568, 47.176, 48.76, 49.72, 49.04, 47.484, 49.64, 50.484, 49.248, 48.72, 50.088, 47.0, 47.8, 49.56, 48.524, 48.480, 47.00, 48.016, 50.80, 48.2, 48.216, 48.2, 49.492, 47.704, 49.0, 47.0, 50.6, 47.272, 47.64, 50.776, 49.68, 49.88, 50.068, 49.8, 49.92, 47.320, 48.96, 49.60, 50.6, 47.4, 47.840, 48.6

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 86 Data element index 1 to 86 th  indexed value of () within the data table 1 to 86 Sum of all given numerical data 4195.656 Sum of All Data Arithmetic mean (average) of sample or population 48.786697674419 Arithmetic Mean  Sum of squares of all differences from the mean  118.594926139535 Sample variance 1.395234425171 Sample Variance Standard deviation within sample ± 1.181200417021 Sample Standard Deviation Population variance 1.379010769064 Population Variance Standard deviation within population ± 1.174312892318 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025