There are two primary ways to write the Sxx formula. One is based on the definition (the "definitional" formula), and the other is optimized for quick calculation (the "computational" formula). 1. The Definitional Formula
Sxx=∑(xi−x̄)2cap S sub x x end-sub equals sum of open paren x sub i minus x bar close paren squared : Individual data points. : The mean (average) of the data. : The sum of all calculated differences. 2. The Computational Formula Sxx Variance Formula
values. The larger the Sxx value, the further the data points are spread out from the average. The Sxx Formula There are two primary ways to write the Sxx formula
Mathematically, it measures the total "spread" or "dispersion" of the Sxx Variance Formula