1. Slide 4- 1 Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Active Learning Lecture Slides For use with Classroom Response Systems Elementary Statistics: Picturing the World Fourth Edition by Larson and Farber Chapter 2: Descriptive Statistics

2. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Find the class width: A. 3 B. 4 C. 5 D. 19 ClassFrequency, f 1 – 521 6 – 1016 11 – 1528 16 – 2013 Slide 2- 2

3. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Find the class width: A. 3 B. 4 C. 5 D. 19 ClassFrequency, f 1 – 521 6 – 1016 11 – 1528 16 – 2013 Slide 2- 3

4. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Estimate the frequency of the class with the greatest frequency. A. 28 B. 21 C. 58 D. 53 Slide 2- 4

5. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Estimate the frequency of the class with the greatest frequency. A. 28 B. 21 C. 58 D. 53 Slide 2- 5

6. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley What is the maximum data entry? A. 96 B. 38 C. 9 D. 41 3 8 9 4 0 2 7 5 1 1 4 8 6 3 3 3 8 9 9 7 0 0 1 1 2 4 7 8 8 8 8 9 8 2 2 3 4 7 7 8 9 9 9 1 1 4 5 6 Key: 3 | 8 = 38 Slide 2- 6

7. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley What is the maximum data entry? A. 96 B. 38 C. 9 D. 41 3 8 9 4 0 2 7 5 1 1 4 8 6 3 3 3 8 9 9 7 0 0 1 1 2 4 7 8 8 8 8 9 8 2 2 3 4 7 7 8 9 9 9 1 1 4 5 6 Key: 3 | 8 = 38 Slide 2- 7

8. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The heights (in inches) of a sample of basketball players are shown: 767981788278 Find the mean. A. 78.5 B. 79 C. 474 D. 78 Slide 2- 8

9. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The heights (in inches) of a sample of basketball players are shown: 767981788278 Find the mean. A. 78.5 B. 79 C. 474 D. 78 Slide 2- 9

10. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The heights (in inches) of a sample of basketball players are shown: 767981788278 Find the median. A. 78.5 B. 79 C. 79.5 D. 78 Slide 2- 10

11. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The heights (in inches) of a sample of basketball players are shown: 767981788278 Find the median. A. 78.5 B. 79 C. 79.5 D. 78 Slide 2- 11

12. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The heights (in inches) of a sample of basketball players are shown: 767981788278 Find the mode. A. 78.5 B. 79 C. 79.5 D. 78 Slide 2- 12

13. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The heights (in inches) of a sample of basketball players are shown: 767981788278 Find the mode. A. 78.5 B. 79 C. 79.5 D. 78 Slide 2- 13

14. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The heights (in inches) of a sample of basketball players are shown: 767981788278 Find the standard deviation. A. 2.2 B. 6 C. 2 D. 4.8 Slide 2- 14

15. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The heights (in inches) of a sample of basketball players are shown: 767981788278 Find the standard deviation. A. 2.2 B. 6 C. 2 D. 4.8 Slide 2- 15

16. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The mean annual automobile insurance premium is $950, with a standard deviation of $175. The data set has a bell-shaped distribution. Estimate the percent of premiums that are between $600 and $1300. A. 68% B. 75% C. 95% D. 99.7% Slide 2- 16

17. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The mean annual automobile insurance premium is $950, with a standard deviation of $175. The data set has a bell-shaped distribution. Estimate the percent of premiums that are between $600 and $1300. A. 68% B. 75% C. 95% D. 99.7% Slide 2- 17

18. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Use the box-and-whisker plot to identify the first quartile. A. 10 B. 18 C. 24 D. 26 Slide 2- 18 | | | | | | | | | | | 10 12 14 16 18 20 22 24 26 28 30 1018242630

19. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Use the box-and-whisker plot to identify the first quartile. A. 10 B. 18 C. 24 D. 26 Slide 2- 19 | | | | | | | | | | | 10 12 14 16 18 20 22 24 26 28 30 1018242630

20. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The mean annual automobile insurance premium is $950, with a standard deviation of $175. Find the z-score that corresponds to a premium of $1250. A. 1.13 B. –1.13 C. 1.71 D. –1.71 Slide 2- 20

21. Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley The mean annual automobile insurance premium is $950, with a standard deviation of $175. Find the z-score that corresponds to a premium of $1250. A. 1.13 B. –1.13 C. 1.71 D. –1.71 Slide 2- 21