Suppose the relationship between your study time and your grade on a Biology midterm is given by the following table:
If you study for
Your grade will be
4 hours
79
5 hours
89
6 hours
94
What is the "marginal grade improvement (MGI)" of the 5th hour of studying?
points
The marginal grade improvement of the 5th hour of studying would be the amount that the student's grade improved as a result of studying for 5 hours instead of 4.
What is the "marginal grade improvement (MGI)" of the 6th hour of studying?
points
The marginal grade improvement of the 6th hour of studying would be the amount that the student's grade improved as a result of studying for 6 hours instead of 5.
Why might the MGI be diminishing?
What is the opportunity cost of additional hours of studying?