The ordered pairs represent the scores on two consecutive 15-point quizzes for a class of 15 students.

(a) Plot the data. From the graph, does the relationship between consecutive scores appear to be approximately linear?

(b) If the data appear to be approximately linear, find a linear model for the data. If not, give some possible explanations.

Transcribed Image Text:

(7, 13), (9,7), (14, 14), (15, 15), (10, 15), (9,7), (11, 14), (7, 14), (14, 11), (14, 15), (8, 10), (15, 9), (10, 11), (9, 10), (11, 10)