The following relative frequency ogive represents the SAT math scores of college-bound students.

(a) What is the class width? How many classes are represented in the graph?

(b) What are the lower and upper limits of the first class?

(c) What are the lower and upper limits of the last class?

(d) Estimate the percentage of students who had a math score of 450 or below.

(e) Estimate the percentage of students who had a math score above 500.

(f) In which class did the most students fall?

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Class of 2010 SAT Mathematics Score 1.0 0.8 0.6 0.4 0.2 100 200 300 400 500 600 700 800 900 Score Cumulative Relative Frequency