Used Cars
the Following Table Shows the Selling Prices and Mileages

question 35

Essay

Used cars
The following table shows the selling prices and mileages for 7 used cars of a certain model.
$$\begin{array} { | c | c | } \hline \text { Mileane } & \text { Price } \\\hline 22,600 & \$ 15,200 \\\hline 32,100 & \$ 12,500 \\\hline 43,800 & \$ 13,900 \\\hline 51,800 & \$ 9500 \\\hline 59,400 & \$ 11,600 \\\hline 65,500 & \$ 11,700 \\\hline 74,700 & \$ 8900 \\\hline\end{array}$$
-Find the least-squares regression line.

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