Questions:

What percentage of students play video games for less than25hr per week? What percentage of students play video games for22

or more hours per week? How many classes are there? What is the class width?

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 1.0-3.9 26 4.0-6.9 32 7.09.9 47 10.0-12.9 30 13.0-15.9 25 16.0-18.9 18 19.0-21.9 10 22.0-24.9 7 25.0-27.9 1 28.0-30.9 4