1. Copyright © 2014, 2011 Pearson Education, Inc. 1 Active Learning Lecture Slides For use with Classroom Response Systems Chapter 3 Describing Categorical Data

2. Copyright © 2014, 2011 Pearson Education, Inc. 2 A table that summarizes the distribution of a categorical variable is… A.an oligive. B.a frequency table. C.a cumulative table. D.histogram.

3. Copyright © 2014, 2011 Pearson Education, Inc. 3 A table that summarizes the distribution of a categorical variable is… A.an oligive. B.a frequency table. C.a cumulative table. D.histogram.

4. Copyright © 2014, 2011 Pearson Education, Inc. 4 A relative frequency table shows the… A. counts for each category. B. proportions for each category. C. percents for each category. D. none of the above.

5. Copyright © 2014, 2011 Pearson Education, Inc. 5 A relative frequency table shows the… A. counts for each category. B. proportions for each category. C. percents for each category. D. none of the above.

6. Copyright © 2014, 2011 Pearson Education, Inc. 6 Bar graphs and pie charts are graphical methods that are often used in summarizing quantitative data. A. true B. false

7. Copyright © 2014, 2011 Pearson Education, Inc. 7 Bar graphs and pie charts are graphical methods that are often used in summarizing quantitative data. A. true B. false

8. Copyright © 2014, 2011 Pearson Education, Inc. 8 A bar chart that sorts the categories by frequency form greatest to least is called… A. a histogram. B. a Pareto chart. C. an oligive. D. a cumulative frequency chart.

9. Copyright © 2014, 2011 Pearson Education, Inc. 9 A bar chart that sorts the categories by frequency form greatest to least is called… A. a histogram. B. a Pareto chart. C. an oligive. D. a cumulative frequency chart.

10. Copyright © 2014, 2011 Pearson Education, Inc. 10 Large wedges in a pie chart indicate categories with… A. small relative frequencies. B. equal relative frequencies. C. large relative frequencies. D. large cumulative frequencies.

11. Copyright © 2014, 2011 Pearson Education, Inc. 11 Large wedges in a pie chart indicate categories with… A. small relative frequencies. B. equal relative frequencies. C. large relative frequencies. D. large cumulative frequencies.

12. Copyright © 2014, 2011 Pearson Education, Inc. 12 Pie charts are less useful than bar charts if we want to compare the actual counts? A. true B. false

13. Copyright © 2014, 2011 Pearson Education, Inc. 13 Pie charts are less useful than bar charts if we want to compare the actual counts? A. true B. false

14. Copyright © 2014, 2011 Pearson Education, Inc. 14 The area principle states that… A.the area must be 100. B.the areas of each bar must be equal. C.the area of each wedge must be equal. D.the area occupied by a part of the graph should correspond to the amount of data it represents.

15. Copyright © 2014, 2011 Pearson Education, Inc. 15 The area principle states that… A.the area must be 100. B.the areas of each bar must be equal. C.the area of each wedge must be equal. D.the area occupied by a part of the graph should correspond to the amount of data it represents.

16. Copyright © 2014, 2011 Pearson Education, Inc. 16 Violations of the area principle are a common way to mislead with statistics. A.true B.false

17. Copyright © 2014, 2011 Pearson Education, Inc. 17 Violations of the area principle are a common way to mislead with statistics. A.true B.false

18. Copyright © 2014, 2011 Pearson Education, Inc. 18 The mode of the data is… A.the label of the category of the middle observation when you sort the values. B.the sum of the data values divided by the number of data values. C.the most common category. D.the difference between its minimum and maximum values.

19. Copyright © 2014, 2011 Pearson Education, Inc. 19 The mode of the data is… A.the label of the category of the middle observation when you sort the values. B.the sum of the data values divided by the number of data values. C.the most common category. D.the difference between its minimum and maximum values.

20. Copyright © 2014, 2011 Pearson Education, Inc. 20 The median of the data is… A.the label of the category of the middle observation when you sort the values. B.the sum of the data values divided by the number of data values. C.the most common category. D.the difference between its minimum and maximum values.

21. Copyright © 2014, 2011 Pearson Education, Inc. 21 The median of the data is… A.the label of the category of the middle observation when you sort the values. B.the sum of the data values divided by the number of data values. C.the most common category. D.the difference between its minimum and maximum values.