Compute the Coefficient of Determination $\hat { y } = 3 x$

Multiple Choice

Compute the coefficient of determination. Round your answer to four decimal places.
-The regression equation for the data below is $\hat { y } = 3 x$ .
$\begin{array}{r|rrrr}\mathrm{x} & 2 & 4 & 5 & 6 \\\hline \mathrm{y} & 7 & 11 & 13 & 20\end{array}$

A) $0.8873$
B) $0.7265$
C) $0.9420$
D) $0.4839$