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. 55.765, 58.5, 56.65, 56.180, 57.5, 58.390, 58.00, 54.0, 57.5, 58.530, 56.00, 56.00, 56.35, 56.65, 54.0, 55.50, 56.0, 54.0, 54.85, 54.5, 58.5, 54.055, 55.0, 54.95, 56.5, 54.30, 58.00, 56.5, 54.680, 57.405, 57.5, 56.80, 56.45, 54.0, 58.20, 55.0, 57.5, 54.25, 54.0, 56.30, 54.0, 55.0, 56.0, 57.5, 56.045, 56.0, 57.595, 54.50, 54.830, 58.285, 57.5, 54.5, 58.295, 54.790, 56.0, 54.0, 58.50, 58.65, 55.730, 56.0, 54.0, 54.920, 57.455, 58.0, 57.025, 57.015, 58.55, 55.5, 58.0, 58.25, 56.40, 58.660, 58.0, 56.300, 54.5, 55.95, 57.5, 56.15, 54.0, 57.5, 56.5, 55.0, 57.850, 58.360, 58.15, 58.5, 57.85, 54.5, 54.55, 58.830, 58.5, 54.55, 54.525

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 93 Data element index 1 to 93 th  indexed value of () within the data table 1 to 93 Sum of all given numerical data 5239.815 Sum of All Data Arithmetic mean (average) of sample or population 56.342096774194 Arithmetic Mean  Sum of squares of all differences from the mean  224.352966129032 Sample variance 2.438619197055 Sample Variance Standard deviation within sample ± 1.561607888381 Sample Standard Deviation Population variance 2.412397485258 Population Variance Standard deviation within population ± 1.553189455687 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025