A study was conducted to determine whether the final grade of astudent in an introductory psychology course is linearly related tohis or her performance on the verbal ability test administeredbefore college entrance. The verbal scores and final grades for1010 students are shown in the table below.
| Student | Verbal Score xx | Final Grade yy |
| 11 | 6565 | 7878 |
| 22 | 5151 | 5858 |
| 33 | 6161 | 7474 |
| 44 | 4949 | 6161 |
| 55 | 3131 | 3434 |
| 66 | 6969 | 8282 |
| 77 | 4747 | 5252 |
| 88 | 7575 | 9494 |
| 99 | 3333 | 3838 |
| 1010 | 2525 | 2626 |
Find the least squares line.
y=___ +___ x
