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A sample of 200 college freshmen was asked how many hours per week they spent playing video games. The following frequency distribution presents the results.

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A sample of 200 college freshmen was asked how many hours per week they spent playing video games. The following frequency distribution presents the results. Number of Hours Frequency 1.0-7.9 22 8.0-14.9 30 15.0-21.9 49 22.0-28.9 27 29.0-35.9 25 36.0-42.9 16 43.0-49.9 13 50.0-56.9 9 57.0-63.9 64.0-70.9 Part 1 of 2 (a) How many classes are there? There are classes. (b) What is the class width

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