Chapter 3.3, Problem 27E

The following two relative frequency distributions are based on data that appeared in The Chronicle of Higher Education (August 23, 2013). The data are from a survey of students at four-year colleges. One relative frequency distribution is for the number of hours spent online at social network sites in a typical week. The second relative frequency distribution is for the number of hours spent playing video and computer games in a typical week.

1. a. Construct a histogram for the social media data. For purposes of constructing the histogram, assume that none of the students in the sample spent more than 40 hours on social media in a typical week and that the last interval can be regarded as 21 to <40. Be sure to use the density scale when constructing the histogram. (Hint: See Example 3.17.)
2. b. Construct a histogram for the video and computer game data. Use the same scale that you used for the histogram in Part (a) so that it will be easy to compare the two histograms.
3. c. Comment on the similarities and differences in the histograms from Parts (a) and (b).