1. Elementary Statistics:
Active Learning Lecture Slides
For use with Classroom Response Systems
Chapter 2: Descriptive Statistics
Elementary Statistics:
Picturing the World
Sixth Edition
by Larson and Farber
© 2015, 2012, 2009 Pearson Education, Inc.

2. © 2015, 2012, 2009 Pearson Education, Inc.
Find the class width: 3 4 5 19
Class
Frequency, f
1 – 5 21
6 – 10 16
11 – 15 28
16 – 20 13
© 2015, 2012, 2009 Pearson Education, Inc.

3. © 2015, 2012, 2009 Pearson Education, Inc.
Find the class width: 3 4 5 19
Class
Frequency, f
1 – 5 21
6 – 10 16
11 – 15 28
16 – 20 13
© 2015, 2012, 2009 Pearson Education, Inc.

4. © 2015, 2012, 2009 Pearson Education, Inc.
Estimate the frequency of the class with the greatest frequency. 28 21 58 53
© 2015, 2012, 2009 Pearson Education, Inc.

5. © 2015, 2012, 2009 Pearson Education, Inc.
Estimate the frequency of the class with the greatest frequency. 28 21 58 53
© 2015, 2012, 2009 Pearson Education, Inc.

6. © 2015, 2012, 2009 Pearson Education, Inc.
What is the maximum data entry? 96 38 9 41
Key: 3 | 8 = 38
© 2015, 2012, 2009 Pearson Education, Inc.

7. © 2015, 2012, 2009 Pearson Education, Inc.
What is the maximum data entry? 96 38 9 41
Key: 3 | 8 = 38
© 2015, 2012, 2009 Pearson Education, Inc.

8. © 2015, 2012, 2009 Pearson Education, Inc.
The heights (in inches) of a sample of basketball players are shown:
Find the mean.
78.5 79
474 78
© 2015, 2012, 2009 Pearson Education, Inc.

9. © 2015, 2012, 2009 Pearson Education, Inc.
The heights (in inches) of a sample of basketball players are shown:
Find the mean.
78.5 79
474 78
© 2015, 2012, 2009 Pearson Education, Inc.

10. © 2015, 2012, 2009 Pearson Education, Inc.
The heights (in inches) of a sample of basketball players are shown:
Find the median.
78.5 79
79.5 78
© 2015, 2012, 2009 Pearson Education, Inc.

11. © 2015, 2012, 2009 Pearson Education, Inc.
The heights (in inches) of a sample of basketball players are shown:
Find the median.
78.5 79
79.5 78
© 2015, 2012, 2009 Pearson Education, Inc.

12. © 2015, 2012, 2009 Pearson Education, Inc.
The heights (in inches) of a sample of basketball players are shown:
Find the mode.
78.5 79
79.5 78
© 2015, 2012, 2009 Pearson Education, Inc.

13. © 2015, 2012, 2009 Pearson Education, Inc.
The heights (in inches) of a sample of basketball players are shown:
Find the mode.
78.5 79
79.5 78
© 2015, 2012, 2009 Pearson Education, Inc.

14. © 2015, 2012, 2009 Pearson Education, Inc.
The heights (in inches) of a sample of basketball players are shown:
Find the standard deviation.
2.2 6 2
4.8
© 2015, 2012, 2009 Pearson Education, Inc.

15. © 2015, 2012, 2009 Pearson Education, Inc.
The heights (in inches) of a sample of basketball players are shown:
Find the standard deviation.
2.2 6 2
4.8
© 2015, 2012, 2009 Pearson Education, Inc.

16. © 2015, 2012, 2009 Pearson Education, Inc.
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.
68%
75%
95%
99.7%
© 2015, 2012, 2009 Pearson Education, Inc.

17. © 2015, 2012, 2009 Pearson Education, Inc.
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.
68%
75%
95%
99.7%
© 2015, 2012, 2009 Pearson Education, Inc.

18. © 2015, 2012, 2009 Pearson Education, Inc.
Use the box-and-whisker plot to identify the first quartile. 10 18 24 26 10 18 24 26 30
| | | | | | | | | | |
© 2015, 2012, 2009 Pearson Education, Inc.

19. © 2015, 2012, 2009 Pearson Education, Inc.
Use the box-and-whisker plot to identify the first quartile. 10 18 24 26 10 18 24 26 30
| | | | | | | | | | |
© 2015, 2012, 2009 Pearson Education, Inc.

20. © 2015, 2012, 2009 Pearson Education, Inc.
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.
1.13
–1.13
1.71
–1.71
© 2015, 2012, 2009 Pearson Education, Inc.

21. © 2015, 2012, 2009 Pearson Education, Inc.
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.
1.13
–1.13
1.71
–1.71
© 2015, 2012, 2009 Pearson Education, Inc.