15 Nov 2021
Problem 122c
Page 150
Section: BRINGING IT TOGETHER: HOMEWORK
Chapter 2: DESCRIPTIVE STATISTICS
Textbook ExpertVerified Tutor
15 Nov 2021
Given information
A publisher conducted a survey asking adult consumers the number of fiction paperback books they had purchased in the previous month. The results are summarized in the Table 
.
Step-by-step explanation
Step 1.
The values that are two standard deviation away from the mean are calculated as:
.
The formula to calculate mean is:
where, 
is the frequency, 
is number of books and 
.
The formula to calculate standard deviation is:
where, 
is the mean.
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
Chapter
Section
- Problem 108a
- Problem 108b
- Problem 108c
- Problem 109a
- Problem 109b
- Problem 109c
- Problem 109d
- Problem 110
- Problem 111
- Problem 112
- Problem 113a
- Problem 113b
- Problem 114a
- Problem 114b
- Problem 114c
- Problem 114d
- Problem 114e
- Problem 114f
- Problem 114g
- Problem 114h
- Problem 114i
- Problem 114j
- Problem 114k
- Problem 114l
- Problem 114m
- Problem 115a
- Problem 115b
- Problem 115c
- Problem 115d
- Problem 115e
- Problem 115f
- Problem 115g
- Problem 115h
- Problem 115i
- Problem 115j
- Problem 116a
- Problem 116b
- Problem 116c
- Problem 116d
- Problem 117a
- Problem 117b
- Problem 117c
- Problem 117d
- Problem 118a
- Problem 118b
- Problem 118c
- Problem 118d
- Problem 118e
- Problem 118f
- Problem 118g
- Problem 118h
- Problem 118i
- Problem 118j
- Problem 118k
- Problem 119a
- Problem 119b
- Problem 119c
- Problem 119d
- Problem 119e
- Problem 119f
- Problem 120
- Problem 121
- Problem 122a
- Problem 122b
- Problem 122c
- Problem 122d
- Problem 122e
- Problem 122f