College student attitudes about e-books were investigated in a survey of 1625 students. Students were asked to indicate their level of agreement with the following statement: "I would like to be able to get all my textbooks in digital form." The responses are summarized in the accompanying table. (The Chronicle of Higher Education, August 23, 2013)
a. Construct an appropriate graphical display to summarize the information given in the table.
b. Write a headline that would be appropriate for a newspaper article that summarized the results of this survey.