8. A content analysis of weight-control advertisements in Ladies Home journal reveals the following types of ads for two five-year periods (fictional data). :1. Construct pie charts (on the same page) to portray changes in percentage frequencies of types of diets advertised in the two periods. b. Construct a clustered bar chart to portray changes in percentage frequencies of these ads. 6. Compare the two types of charts. In general, what do the charts convey? Which graphical style is better at depicting the phenomenon? Explain your choice. Number of Times it Appeared Time of Weight-loss Advertisement 198488 138993 Quick weight 1055 F8 4'? Fat free/light 129 487' Sugar free 94 138 Cholesterol free 108 262 Other 52 32 __.__ t. the of the 50 10. A small college is interested in increasing participation in campus activities. A random sample of students was asked to check events they The Statistical Imagination attended on a checklist for the previous term. The numbers of events attended were as follows (fictional data): 2, 2, 4, 8, 5, 2, 3, 1, 6, 5, 4, 12, 1, 4, 2, 7, 6, 3, 2, 4, 7, 4, 2, 3. a. Construct a frequency histogram of these data. b. Construct a frequency polygon of these data. c. Which of the two graphs would you choose to present to a public audience? Why? d. One of the scores is peculiar. What is this peculiarity called?12. The following are frequency distributions of the ages of inpatients at a substance abuse treatment hospital by the major diagnoses of cocaine addiction and alcohol addiction (fictional data). a. Construct overlying frequency polygons of these data. Caution: The sample sizes differ. b. What does the graph reveal? Chapter 3 Charts and Graphs: A Picture Says a Thousand Words 95 Cocaine Addicts Alcohol Addicts Age 26 27 28 29 11 30 13 31 32 NUIJUJUDOUIWNNE 33 35 36 3 38