The article “The Healthy Kids Survey: A Look at the Findings” (San Luis Obispo Tribune, Oc to ber 25, 2002) gave the accompanying information for a sample of fifth graders in San Luis Obispo County. Responses are to the question:

“After school, are you home alone without adult supervision?”

Response Percentage Never 8 Some of the time 15 Most of the time 16 All of the time 61

a. Summarize these data using a pie chart.

b. Construct a segmented bar graph for these data.

c. Which graphing method—the pie chart or the segmented bar graph—do you think does a better job of conveying information about response? Explain.