The Equation of the Regression Line for the Paired Data $\hat { y } = 6.18286 + 4.33937 x$

Multiple Choice

The equation of the regression line for the paired data below is $\hat { y } = 6.18286 + 4.33937 x$ . Find the unexplained variation.
$\begin{array}{r|rrrrrrr}\mathrm{x} & 9 & 7 & 2 & 3 & 4 & 22 & 17 \\\hline \mathrm{y} & 43 & 35 & 16 & 21 & 23 & 102 & 81\end{array}$

A) $18.923$
B) $6,544.86$
C) $6,531.37$
D) $13.479$