The test scores of 6 randomly picked students and the numbers of hours they prepared are as follows: $$\begin{array} { | r | r r r r r r }
\hline \text { Hours } & 5 & 10 & 4 & 6 & 10 & 9 \
\hline \text { Score } & 64 & 86 & 69 & 86 & 59 & 87
\end{array}$$ The equation of the regression line is $$\hat { \mathrm { y } } = 1.06604 x + 67.3491$$ 67.3491. Find the coefficient of determination.
A) 0.0503
B) -0.2242
C) 0.2242
D) 0.6781

Question

The test scores of 6 randomly picked students and the numbers of hours they prepared are as follows: $$\begin{array} { | r | r r r r r r } 
\hline \text { Hours } & 5 & 10 & 4 & 6 & 10 & 9 \
\hline \text { Score } & 64 & 86 & 69 & 86 & 59 & 87
\end{array}$$ The equation of the regression line is $$\hat { \mathrm { y } } = 1.06604 x + 67.3491$$ 67.3491. Find the coefficient of determination.
A) 0.0503
B) -0.2242
C) 0.2242
D) 0.6781

Quizplus · Accepted Answer

The Answer of The test scores of 6 randomly picked students and the numbers of hours they prepared are as follows: $$\begin{array} { | r | r r r r r r } 
\hline \text { Hours } & 5 & 10 & 4 & 6 & 10 & 9 \
\hline \text { Score } & 64 & 86 & 69 & 86 & 59 & 87
\end{array}$$ The equation of the regression line is $$\hat { \mathrm { y } } = 1.06604 x + 67.3491$$ 67.3491. Find the coefficient of determination.
A) 0.0503
B) -0.2242
C) 0.2242
D) 0.6781

The Test Scores of 6 Randomly Picked Students and the Numbers