1. Copyright © 2014, 2011 Pearson Education, Inc. 1 Active Learning Lecture Slides For use with Classroom Response Systems Chapter 4 Describing Numerical Data

2. Copyright © 2014, 2011 Pearson Education, Inc. 2 The median is what percentile? A. 25th B. 50th C. 75th D. 100th

3. Copyright © 2014, 2011 Pearson Education, Inc. 3 The median is what percentile? A. 25th B. 50th C. 75th D. 100th

4. Copyright © 2014, 2011 Pearson Education, Inc. 4 The lower quartile is what percentile? A. 25th B. 50th C. 75th D. 100th

5. Copyright © 2014, 2011 Pearson Education, Inc. 5 The lower quartile is what percentile? A. 25th B. 50th C. 75th D. 100th

6. Copyright © 2014, 2011 Pearson Education, Inc. 6 The upper quartile is what percentile? A. 25th B. 50th C. 75th D. 100th

7. Copyright © 2014, 2011 Pearson Education, Inc. 7 The upper quartile is what percentile? A. 25th B. 50th C. 75th D. 100th

8. Copyright © 2014, 2011 Pearson Education, Inc. 8 The interquartile range is the… A.difference between its minimum and maximum values. B.difference between the mean and median. C.distance between the mean and median. D.distance from the lower quartile to the upper quartile.

9. Copyright © 2014, 2011 Pearson Education, Inc. 9 The interquartile range is the… A.difference between its minimum and maximum values. B.difference between the mean and median. C.distance between the mean and median. D.distance from the lower quartile to the upper quartile.

10. Copyright © 2014, 2011 Pearson Education, Inc. 10 The range is the… A.difference between its minimum and maximum values. B.difference between the mean and median. C.distance between the mean and median. D.distance from the lower quartile to the upper quartile.

11. Copyright © 2014, 2011 Pearson Education, Inc. 11 The range is the… A.difference between its minimum and maximum values. B.difference between the mean and median. C.distance between the mean and median. D.distance from the lower quartile to the upper quartile.

12. Copyright © 2014, 2011 Pearson Education, Inc. 12 The mean is the… A.label of the category of the middle observation when you sort the values. B.sum of the data values divided by the number of data values. C.most common category. D.difference between its minimum and maximum values.

13. Copyright © 2014, 2011 Pearson Education, Inc. 13 The mean is the… A.label of the category of the middle observation when you sort the values. B.sum of the data values divided by the number of data values. C.most common category. D.difference between its minimum and maximum values.

14. Copyright © 2014, 2011 Pearson Education, Inc. 14 Which of the following are measures of the spread of a distribution (circle all that apply): I. Mean II. Variance III. Standard deviation IV. Median A. II only B. III only C. I and IV D. II and III

15. Copyright © 2014, 2011 Pearson Education, Inc. 15 Which of the following are measures of the spread of a distribution (circle all that apply): I. Mean II. Variance III. Standard deviation IV. Median A. II only B. III only C. I and IV D. II and III

16. Copyright © 2014, 2011 Pearson Education, Inc. 16 The most common plot of the distribution of a numerical variable is a… A. pie chart. B. bar chart. C. boxplot. D. histogram.

17. Copyright © 2014, 2011 Pearson Education, Inc. 17 The most common plot of the distribution of a numerical variable is a… A. pie chart. B. bar chart. C. boxplot. D. histogram.

18. Copyright © 2014, 2011 Pearson Education, Inc. 18 A value that lies very far away from the majority of the other values is… A.the mode. B.the variance. C.an outlier. D.the range.

19. Copyright © 2014, 2011 Pearson Education, Inc. 19 A value that lies very far away from the majority of the other values is… A.the mode. B.the variance. C.an outlier. D.the range.

20. Copyright © 2014, 2011 Pearson Education, Inc. 20 A graphical summary of a numerical variable that shows the five-number summary of a variable is a… A.boxplot. B.histogram. C.bar chart. D.pie chart.

21. Copyright © 2014, 2011 Pearson Education, Inc. 21 A graphical summary of a numerical variable that shows the five-number summary of a variable is a… A.boxplot. B.histogram. C.bar chart. D.pie chart.

22. Copyright © 2014, 2011 Pearson Education, Inc. 22 The shape of the graph is… A.symmetric. B.skewed right. C.skewed left. D.unimodal.

23. Copyright © 2014, 2011 Pearson Education, Inc. 23 The shape of the graph is… A.symmetric. B.skewed right. C.skewed left. D.unimodal.

24. Copyright © 2014, 2011 Pearson Education, Inc. 24 The shape of the graph is… A.symmetric. B.skewed right. C.skewed left. D.unimodal.

25. Copyright © 2014, 2011 Pearson Education, Inc. 25 The shape of the graph is… A.symmetric. B.skewed right. C.skewed left. D.unimodal.

26. Copyright © 2014, 2011 Pearson Education, Inc. 26 The empirical rule states that… A.about 68% of the data lie with in one standard deviation of the mean. B.about 95% of the data lie with in two standard deviations of the mean. C.almost all the data lie within three standard deviations of the mean. D.all of the above.

27. Copyright © 2014, 2011 Pearson Education, Inc. 27 The empirical rule states that… A.about 68% of the data lie with in one standard deviation of the mean. B.about 95% of the data lie with in two standard deviations of the mean. C.almost all the data lie within three standard deviations of the mean. D.all of the above.