The table below gives grade point average at the end of two years of pre-medical curriculum and scores on a national medical exam for 10 med students. What is the slope of the regression student GPA(x) National exam score(y)
1 3.35 620
2 2.37 445
3 3.13 545
4 3.10 560
5 1.94 295
6 3.00 570
7 2.85 415
8 1.96 430
9 2.98 460
10 2.55 410