What is the probability of DOT-compliant helmet use by region of the country? What region has the highest probability of DOT-compliant helmet use?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
The National Occupant Protection Use Survey (NOPUS) was conducted to provide probability-
based data on motorcycle helmet use in the United States. The survey was conducted by sending
observers to randomly selected roadway sites where they collected data on motorcycle helmet use,
including the number of motorcyclists wearing a Department of Transportation (DOT)-compliant
helmet (National Highway Traffic Safety Administration website, January 7, 2010). Sample data
consistent with the most recent NOPUS are shown below. Answer questions 8 -10.
Type of Helmet
DOT-
Region
Compliant
Noncompliant
Northeast
96
62
Midwest
86
43
South
92
49
West
76
16
Total
350
170
(Hint: The above table is a cross-tabulation, but the right margin is missing. You will need to
calculate the total number of motorcyclists for each region as well as the total number of
motorcyclists of all four regions.)
Transcribed Image Text:The National Occupant Protection Use Survey (NOPUS) was conducted to provide probability- based data on motorcycle helmet use in the United States. The survey was conducted by sending observers to randomly selected roadway sites where they collected data on motorcycle helmet use, including the number of motorcyclists wearing a Department of Transportation (DOT)-compliant helmet (National Highway Traffic Safety Administration website, January 7, 2010). Sample data consistent with the most recent NOPUS are shown below. Answer questions 8 -10. Type of Helmet DOT- Region Compliant Noncompliant Northeast 96 62 Midwest 86 43 South 92 49 West 76 16 Total 350 170 (Hint: The above table is a cross-tabulation, but the right margin is missing. You will need to calculate the total number of motorcyclists for each region as well as the total number of motorcyclists of all four regions.)
What is the probability of DOT-compliant helmet use by region of the country? What region has
the highest probability of DOT-compliant helmet use?
(Hint: Please pay attention that the question asks about the probability of DOT-compliant helmet
use in each region of the country. You need to divide the number of motorcyclists wearing a DOT-
compliant helmet in each region by the total number of motorcyclists of the region to calculate the
probability.)
Transcribed Image Text:What is the probability of DOT-compliant helmet use by region of the country? What region has the highest probability of DOT-compliant helmet use? (Hint: Please pay attention that the question asks about the probability of DOT-compliant helmet use in each region of the country. You need to divide the number of motorcyclists wearing a DOT- compliant helmet in each region by the total number of motorcyclists of the region to calculate the probability.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman