Use the Given Data to Find the Best Predicted Value $\mathrm { r } = 0.708$

Multiple Choice

Use the given data to find the best predicted value of the response variable.
-Eight pairs of data yield $\mathrm { r } = 0.708$ and the regression equation $\hat { y } = 55.8 + 2.79 x$ . Also, $\bar { y } = 71.125$ What is the best predicted value of $y$ for $x = 9.9 ?$

A) 71.13
B) 83.42
C) 555.21
D) 57.80