Q$1$

Q$2$

Q$3$

Q$4$

Q$6$

Q$9$

Q$13$

The equation $\frac{1}{n}{\displaystyle \underset{i=1}{\overset{n}{}}}(y_i-$hat$(y{)}_i{)}^2$ is used to calculate the:

Residual Sum of Squares

Logarithmic Residual Sum of Squares

Mean Squared Error

$R^{{?}^{{?}^{?}}}2$