(On the relationship between marginal this and marginal that) (3 points)

1. Suppose our class had 10 quizzes over 10 weeks. And that each quiz was worth 50 points instead of 10 points. So you start off the semester well, but then your grades begin to slip a little until you recover later on, finishing the term with a bang. Specifically, your ten course grades are shown in the table below.

Quiz number	Quiz Score	Cumulative Quiz Score	Average Quiz Score	Marginal Quiz Score
1	42
2	37
3	34
4	36
5	38.5
6	41.5
7	43
8	44
9	45
10	50

1. Fill in each of the blank cells in the Table above.(1.5 points; 0.05 per cell)(-
2. Your grades begin to improve with your fourth quiz grade. Does your average quiz grade begin to increase with your fourth quiz grade as well? Why or why not? (0.5 points)(-

Answer:

(b) Suppose your friend's Spring (ii) term-specific GPA (grade point average) is higher than her Spring (i) term-specific GPA. But that her overall (cumulative) GPA decreases. Your friend then tells you that a mistake must have been made.Assuming the records are accurate, explain to your friend why this is possible using the language of marginal and average. (1 point)(-

Answer: