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. 54.78, 53.50, 54.2, 54.6, 54.6, 53.12, 54.78, 54.976, 54.680, 53.8, 54.308, 54.4, 53.94, 54.380, 53.58, 54.6, 54.036, 53.40, 53.90, 54.06, 54.6, 54.68, 53.6, 53.56, 53.6, 53.500, 53.6, 53.72, 53.58, 53.2, 54.6, 54.8, 54.2, 53.764, 53.34, 53.86, 53.2, 53.0, 54.4, 53.298, 53.080, 54.16, 53.4, 53.0, 53.8, 53.160, 53.2, 54.2, 54.34, 53.84, 54.14, 53.198, 53.30, 53.914, 53.76, 53.344, 53.04, 53.848, 54.636, 53.42, 53.6, 54.022, 53.748, 53.0, 54.74, 54.286, 54.4, 53.454, 53.0, 53.920, 53.58, 54.2, 53.150

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 73 Data element index 1 to 73 th  indexed value of () within the data table 1 to 73 Sum of all given numerical data 3931.621999999999 Sum of All Data Arithmetic mean (average) of sample or population 53.857835616438 Arithmetic Mean  Sum of squares of all differences from the mean  22.168790027397 Sample variance 0.307899861492 Sample Variance Standard deviation within sample ± 0.554887251153 Sample Standard Deviation Population variance 0.30368205517 Population Variance Standard deviation within population ± 0.551073547877 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2025