Chapter 2.1, Problem 2.23E

(a)

To determine

To Explain: that the constructing a pie chart is appropriate or not, if not explain it.

Answer to Problem 2.23E

No

Explanation of Solution

Given:

A pie chart needs that each category be independent of the other categories, this means that no answer can be in more than one category. It is observed in this case that it is possible to utilize any both cell phones and text messaging and therefore a pie chart is not possible.

(b)

To determine

To Explain: that which graph tells about students’ communication preferences.

Explanation of Solution

Given:

This bar graph tells that students like communication in person. A little less preferred is internet chat or MSN, while telephone and text messages, social media are not already popular.