This table summarizes results of a survey of the purchasing habits of 1, XXXXXXXXXXto 25-year-olds in the United States in 2006, a much sought-after group of consumers.8 Each row of the table...

This table summarizes results of a survey of the purchasing habits of 1,800 13- to 25-year-olds in the United States in 2006, a much sought-after group of consumers.8 Each row of the table indicates the percentage of participants in the survey who say the following:

(a) Would it be appropriate to summarize these percentages in a single pie chart?

(b) What type of chart would you recommend for these four percentages?