1. © 2013 Pearson Education, Inc. Active Learning Lecture Slides For use with Classroom Response Systems Introductory Statistics: Exploring the World through Data, 1e by Gould and Ryan Chapter 2: Reading Quiz 4 (sections 2.3-2.5) Slide 2 - 1

2. True or False Two commonly used graphs to display the distribution of a sample of categorical data are bar charts and pie charts. A. True B. False Slide 2 - 2 © 2013 Pearson Education, Inc. Response Counter

3. True or False Bar charts are the same exact graphs as histograms. A. True B. False Slide 2 - 3 © 2013 Pearson Education, Inc. Response Counter

4. Bar charts that are sorted from most frequent to least frequent are called A. Sorted charts. B. Pareto charts. C. Histograms. D. None of the above. Slide 2 - 4 © 2013 Pearson Education, Inc. Response Counter

5. Pie charts are graphical summaries for categorical data and A. Show the proportion of observations that belong to each category. B. Each category is represented by a wedge in the pie. C. The area of the wedge is proportional to the relative frequency of that category. D. All of the above. Slide 2 - 5 © 2013 Pearson Education, Inc. Response Counter

6. The category that occurs the most often is called the A. Mean. B. Median. C. Mode. D. Range. Slide 2 - 6 © 2013 Pearson Education, Inc. Response Counter

7. True or False If a distribution has only a little diversity (many of the observations fall into the same category), then variability is low. A. True B. False Slide 2 - 7 © 2013 Pearson Education, Inc. Response Counter

8. True or False In terms of misleading graphs, the most common “trick”—one that is particularly effective with bar charts—is to change the scale of the vertical axis so that it does not start at the origin (0). A. True B. False Slide 2 - 8 © 2013 Pearson Education, Inc. Response Counter

9. True or False Most of the misleading graphics you will run across exploit a similar theme: Our eye tends to compare the relative sizes of objects; that is, their area, not just their height. A. True B. False Slide 2 - 9 © 2013 Pearson Education, Inc. Response Counter

10. True or False If a distribution has a lot of diversity (many observations in many different categories), then variability is low. A. True B. False Slide 2 - 10 © 2013 Pearson Education, Inc. Response Counter

11. True or False When summarizing graphs of categorical data, one should report the mode or modes and describe the variability (diversity). A. True B. False Slide 2 - 11 © 2013 Pearson Education, Inc. Response Counter