Exercise 3.6:
The article "The Need to Be Plugged In" (Associated Press, December 22, 2005) described the results of a survey of 1006 adults who were
asked about various technologies, including personal computers, cell phones, and DVD players. The accompanying table summarizes the
responses to questions about how essential these technologies were.
Relative Frequency
Response
Personal Computer
Cell Phone
DVD Player
Cannot imagine living without
.46
.41
.19
Would miss but could do without
.28
.25
.35
Could definitely live without
.26
.34
.46
Construct a comparative bar chart that shows the distribution of responses for the three different technologies.