I would like to consider the topic of analysis of variance that we use for both simple linear regression and multiple linear regression also called ANOVA.The ANOVA table is shown below and I would like your comment on the sum of squares column.I await your comment

Regresion Lineal Multiple ANALISIS DE LA VARIANZA: TABLA ANOVA Variacion Suma cuadrados Grados libertad Media cuadratica F-Snedecor SCE = (Y -Y)2 SCE Explicada k 1-1 k SCE/K F = Residual SCR = E(Y - Y) 2 SCR SCR/ (n-k-1) n-k-1 1 1 n-k-1 Total SCT = >(Y, -Y) 2 n-1 1 1