The accompanying data are the number of wins and the earned runaverages​ (mean number of earned runs allowed per nine innings​pitched) for eight baseball pitchers in a recent season. Find theequation of the regression line. Then construct a scatter plot ofthe data and draw the regression line. Then use the regressionequation to predict the value of y for each of the given​ x-values,if meaningful. If the​ x-value is not meaningful to predict thevalue of​ y, explain why not.
​(a) x=5 wins ​(b) x=10 wins ​(c) x=21 wins ​(d) x=15 wins. Theequation of the regression line is y with equals ____xplus ______.​(Round to two decimal places as​ needed.)
| |
| ​Wins, x | Earned run​average, y | |
|---|
| 20 | 2.75 | |
| 18 | 3.32 | |
| 17 | 2.66 | |
| 16 | 3.77 | |
| 14 | 3.88 | |
| 12 | 4.25 | |
| 11 | 3.76 | |
| 9 | 5.06 | |
