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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.
Slide 4- 1
Find the class width:
A. 3
Class
1– 5
Frequency, f
21
6 – 10
11 – 15
16 – 20
16
28
13
B. 4
C. 5
D. 19
© 2015, 2012, 2009 Pearson Education, Inc.
Slide 2- 2
Find the class width:
A. 3
Class
1– 5
Frequency, f
21
6 – 10
11 – 15
16 – 20
16
28
13
B. 4
C. 5
D. 19
© 2015, 2012, 2009 Pearson Education, Inc.
Slide 2- 3
Estimate the frequency of the class with
the greatest frequency.
60
Ages of Concert Attendees
A. 28
B. 21
C. 58
D. 53
Frequency
50
40
30
20
10
0
18
28
38
48
58
Age
© 2015, 2012, 2009 Pearson Education, Inc.
Slide 2- 4
Estimate the frequency of the class with
the greatest frequency.
60
Ages of Concert Attendees
A. 28
B. 21
C. 58
D. 53
Frequency
50
40
30
20
10
0
18
28
38
48
58
Age
© 2015, 2012, 2009 Pearson Education, Inc.
Slide 2- 5
What is the maximum data entry?
Key: 3 | 8 = 38
A. 96
B. 38
C. 9
D. 41
3
4
5
6
7
8
9
8
0
1
3
0
2
1
9
2
1
3
0
2
1
7
4
3
1
3
4
8
8
1
4
5
© 2015, 2012, 2009 Pearson Education, Inc.
9 9
2 4 7 8 8 8 8 9
7 7 8 9 9
6
Slide 2- 6
What is the maximum data entry?
Key: 3 | 8 = 38
A. 96
B. 38
C. 9
D. 41
3
4
5
6
7
8
9
8
0
1
3
0
2
1
9
2
1
3
0
2
1
7
4
3
1
3
4
8
8
1
4
5
© 2015, 2012, 2009 Pearson Education, Inc.
9 9
2 4 7 8 8 8 8 9
7 7 8 9 9
6
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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%
© 2015, 2012, 2009 Pearson Education, Inc.
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%
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
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
© 2015, 2012, 2009 Pearson Education, Inc.
Slide 2- 21