Avg. Sqft Avg. Price

beta1 beta2

Sum of Squares Residuals (Sum of Squared Errors)
Sum of Squares Total

Read more about Proportion Unexplained Variance

\( \frac{SSR}{SST}=\frac{\frac{SSR}{N}}{\frac{SST}{N}}=\frac{MSE}{Var_y}= \) Proportion unexplained Variance

Read about Proportion of Explained Variance \(R^2\)

\( \overbrace{1- \underbrace{\frac{SSR}{SST}}_{\mbox{Prop. unexpl. Var.}}}^{\mbox{Prop. explained Var.}}= R^2\) =