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. 92.370, 91.62, 92.34, 87.756, 87.606, 88.536, 92.16, 91.50, 88.308, 90.6, 87.0, 88.2, 89.742, 91.2, 87.0, 91.2, 89.4, 91.08, 89.28, 91.62, 87.6, 88.422, 89.136, 91.830, 92.70, 91.740, 89.718, 92.310, 92.34, 90.114, 87.846, 89.04, 89.4, 89.82, 92.40, 90.696, 89.4, 87.84, 89.112, 91.2, 91.2, 90.0, 89.190, 92.268, 88.638, 91.8, 91.128, 87.96, 87.6, 91.44, 87.486, 90.684, 88.8, 87.0, 92.4, 88.8, 91.128, 87.552, 87.6, 90.132, 88.2, 89.4, 91.8, 92.4, 91.542, 88.668, 88.62, 91.434, 89.112, 87.30, 87.0, 89.4, 89.04, 91.8, 87.852, 87.84, 91.8, 88.2, 87.60, 90.72, 92.694, 88.926, 92.16, 91.74, 91.62, 89.4, 88.14, 87.6, 90.0, 91.8, 88.26, 89.250, 91.026, 87.0

Statistics Computed From The Above Data Table Mathematical  Expression  Numerical  Evaluation  Data elements count 94 Data element index 1 to 94 th  indexed value of () within the data table 1 to 94 Sum of all given numerical data 8443.332 Sum of All Data Arithmetic mean (average) of sample or population 89.822680851064 Arithmetic Mean  Sum of squares of all differences from the mean  288.300212425532 Sample variance 3.100002284146 Sample Variance Standard deviation within sample ± 1.76068233482 Sample Standard Deviation Population variance 3.067023536442 Population Variance Standard deviation within population ± 1.751291962079 Population Standard Deviation

PHP Math Tool by Jay Tanner - 2023