The following frequency polygon represents the cumulative grade point average of a random sample of students at an engineering school.

(a) What is the class width? How many classes are represented in the graph?
(b) What is the midpoint of the first class? What are the lower and upper limits of the first class?
(c) What is the midpoint of the last class? What are the lower and upper limits of the last class?
(d) What are the lower and upper limits of the class with 25 students?
(e) What are the lower and upper limits of the class with the fewest students?

Transcribed Image Text:

What Is Your Cumulative Grade Point Average? 30 25 20 15 10 0.75 2.25 2.75 1.25 1.75 3.25 3.75 4.25 GPA Frequency