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. 51.156, 51.656, 52.0, 52.6, 52.06, 51.06, 51.2, 52.486, 52.098, 51.56, 52.348, 52.8, 52.2, 52.912, 51.2, 51.052, 52.8, 52.84, 52.70, 51.830, 51.02, 51.4, 52.4, 51.92, 52.76, 51.4, 51.2, 52.64, 51.2, 52.80, 52.32, 52.4, 52.86, 52.076, 52.348, 51.0, 51.064, 51.60, 51.830, 52.958, 51.38, 52.96, 51.674, 52.0, 52.26, 51.912, 52.50, 51.84, 51.294, 51.4, 52.8, 51.138, 52.4, 52.318, 51.76, 51.510, 52.068, 52.4, 51.0, 51.804, 52.080, 52.206, 51.394, 52.896, 52.10, 51.8, 52.0, 52.488, 52.24, 52.692, 51.6, 52.24, 51.734, 52.434, 51.276, 51.6, 52.6, 51.26, 51.8, 52.8, 51.14, 51.22

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 82 Data element index 1 to 82 th  indexed value of () within the data table 1 to 82 Sum of all given numerical data 4261.772000000002 Sum of All Data Arithmetic mean (average) of sample or population 51.972829268293 Arithmetic Mean  Sum of squares of all differences from the mean  28.904975609756 Sample variance 0.356851550738 Sample Variance Standard deviation within sample ± 0.597370530523 Sample Standard Deviation Population variance 0.352499702558 Population Variance Standard deviation within population ± 0.59371685386 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025