Use the Following Data to Answer the Questions -Choice
-What Is the Slope of the Regression Line?
A)

Multiple Choice

Use the following data to answer the Questions: .
Let x = time spent studying and y = test score. $$\begin{array} { l r r r r r r r r r r r r } \text { Time spent } & 1 & 2 & 5 & 4 & 6 & 7 & 8 & 5 & 2 & 4 & 3 & 5 \\\text { studying(hours) } & & & & & & & & & & & & \\\text { Test score } & 49 & 57 & 80 & 70 & 88 & 91 & 98 & 80 & 57 & 72 & 65 & 82 \\\text { (percentage) } & & & & & & & & & & & &\end{array}$$ -Choice
-What is the slope of the regression line?

A) about 2
B) about 7
C) about 43
D) None of the above.