16. Is the correlation significant?
17. What is the predicted grade for a student who studied 8 hours?
18. What is the absolute value of error (or residual) for 3 hours of studying? a.1.1752 b.-0.7895 c.58.8428 d.None of the above
19. Predict the grade for studying 12 hours a day:
20. An instructor divides his class into 5 equal groups and then used randInt(1,5, 2) to select all students in 2 groups. This is an example of
21. A good sample is said to be: