The Data Below Are the Number of Absences and the Final

question 32

Multiple Choice

The data below are the number of absences and the final grades of 9 randomly selected students from a statistics class. Find the equation of the regression line for the given data. $$\begin{array} { l | c | c | c | c | c | c | c | c | c | } \text { Number of absences, } \mathrm { x } & 0 & 3 & 6 & 4 & 9 & 2 & 15 & 8 & 5 \\\hline \text { Final grade, } \mathrm { y } & 98 & 86 & 80 & 82 & 71 & 92 & 55 & 76 & 82\end{array}$$

• A) \(\hat {\mathrm { y }}\)
• = -2.755x + 96.139
• B) \(\hat { y }\) = 96.139x - 2.755
• C) \(\hat { \mathrm { y } }\) = -2.755x - 96.139
• D) \(\mathrm { y }\) = -96.139x + 2.755

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