Question

Smallville High School's Principal is concerned about his school’s Advanced Placement (AP) test scores. He wonders if there is a relationship between the students’ performance in class and their AP test scores so he randomly selects a sample of ten students who took AP examinations and compares their final exam scores to their AP test scores. .
AP Score: 5 1 4 2 1 4 2 1 3 5

Final Score %: 97 70 84 66 62 79 73 63 82 90

Create an equation and graph using the points: (5, 97), (1, 70), (4, 84), (2, 66), (1, 62), (4, 79), (2, 73), (1, 63), (3, 82), and (5, 90). Use the equation of your line of best fit to predict the final exam score of another Smallville HS student who scored a 3 on their AP test.​

Answer 1

Answer:

use your calculator

Step-by-step explanation:

To calculate the Linear Regression (ax+b): Press [STAT] to enter the statistics menu. Press the right arrow key to reach the CALC menu and then press 4: LinReg(ax+b). Ensure Xlist is set at L1, Ylist is set at L2 and Store RegEQ is set at Y1 by pressing [VARS] [→] 1:Function and 1:Y1.