Twelve nursing students are set to graduate and the registration clerk at the nursing school wonders if there is a correlation between a student's age, their GPA and their state board score. She collects data about the 12 students. The data is given below. What is the regression equation?
Age | GPA | State Board | | Age | GPA | State Board |
26 | 3.0 | 620 | | 27 | 3.3 | 639 |
25 | 3.1 | 568 | | 25 | 3.5 | 558 |
30 | 2.3 | 633 | | 26 | 2.0 | 595 |
20 | 2.5 | 516 | | 20 | 3.2 | 511 |
23 | 3.9 | 585 | | 25 | 3.5 | 579 |
23 | 2.5 | 584 | | 23 | 4.0 | 566 |
◦ State Board = 4.6 + 255 Age + 12.7 GPA
◦ State Board = 12.7 + 4.6 Age + 255 GPA
◦ State Board = 255 + 12.7 Age + 4.6 GPA
◦ State Board = 255 + 4.6 Age + 12.7 GPA