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Use a Graphing Utility to Find the Equation of the Line

Question 249

Multiple Choice

Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
-Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below. Performance59636569587776697064Attitude72677882758792838778\begin{array}{l|l|l|l|l|l|l|l|l|l}Performance&59 & 63 & 65 & 69 & 58 & 77 & 76 & 69 & 70 & 64 \\Attitude& 72 & 67 & 78 & 82 & 75 & 87 & 92 & 83 & 87 & 78\end{array}


A) y=47.3+2.02xy = - 47.3 + 2.02 x
B) y=92.30.669xy = 92.3 - 0.669 x
C) y=11.7+1.02xy = 11.7 + 1.02 x
D) y=2.81+1.35xy = 2.81 + 1.35 x

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