Transcript les4e_alq_02ac
Active Learning Lecture Slides
For use with Classroom Response Systems
Chapter 2: Descriptive Statistics
Elementary Statistics:
Picturing the World
Fourth Edition by Larson and Farber
Slide 4- 1
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Find the class width: Class
1 – 5 6 – 10 11 – 15 16 – 20
Frequency, f
21 16 28 13
A. 3 B. 4 C. 5 D. 19
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 2
Find the class width: Class
1 – 5 6 – 10 11 – 15 16 – 20
Frequency, f
21 16 28 13
A. 3 B. 4 C. 5 D. 19
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 3
Estimate the frequency of the class with the greatest frequency. A. 28 B. 21 C. 58 D. 53
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 4
Estimate the frequency of the class with the greatest frequency. A. 28 B. 21 C. 58 D. 53
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 5
What is the maximum data entry? A. 96 B. 38 C. 9 D. 41
Key: 3 | 8 = 38 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 Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 6
What is the maximum data entry? A. 96 B. 38 C. 9 D. 41
Key: 3 | 8 = 38 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 Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 7
The heights (in inches) of a sample of basketball players are shown: 76 79 81 78 82 78 Find the mean.
A. 78.5
B. 79 C. 474 D. 78
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 8
The heights (in inches) of a sample of basketball players are shown: 76 79 81 78 82 78 Find the mean.
A. 78.5
B. 79 C. 474 D. 78
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 9
The heights (in inches) of a sample of basketball players are shown: 76 79 81 78 82 78 Find the median.
A. 78.5
B. 79 C. 79.5
D. 78
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 10
The heights (in inches) of a sample of basketball players are shown: 76 79 81 78 82 78 Find the median.
A. 78.5
B. 79 C. 79.5
D. 78
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 11
The heights (in inches) of a sample of basketball players are shown: 76 79 81 78 82 78 Find the mode.
A. 78.5
B. 79 C. 79.5
D. 78
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 12
The heights (in inches) of a sample of basketball players are shown: 76 79 81 78 82 78 Find the mode.
A. 78.5
B. 79 C. 79.5
D. 78
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 13
The heights (in inches) of a sample of basketball players are shown: 76 79 81 78 82 78 Find the standard deviation.
A. 2.2
B. 6 C. 2 D. 4.8
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 14
The heights (in inches) of a sample of basketball players are shown: 76 79 81 78 82 78 Find the standard deviation.
A. 2.2
B. 6 C. 2 D. 4.8
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 15
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%
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 16
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%
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 17
Use the box-and-whisker plot to identify the first quartile.
10 18 24 26 30 | | | | | | | | | | | 10 12 14 16 18 20 22 24 26 28 30
A. 10 B. 18 C. 24 D. 26
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 18
Use the box-and-whisker plot to identify the first quartile.
10 18 24 26 30 | | | | | | | | | | | 10 12 14 16 18 20 22 24 26 28 30
A. 10 B. 18 C. 24 D. 26
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 19
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
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 20
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
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Slide 2- 21