College students were asked, "How often do you wear a seat belt when riding in a car driven by someone else?" The response frequencies appear in the table to the right. (a) Construct a probability model for seat-belt use by a passenger. (b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else? (a) Complete the table below. Response Never Rarely Probability Sometimes Most of the time Always Response Frequency 106 332 592 1215 2767 Never Rarely Sometimes Most of the time Always (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else? ||||||
College students were asked, "How often do you wear a seat belt when riding in a car driven by someone else?" The response frequencies appear in the table to the right. (a) Construct a probability model for seat-belt use by a passenger. (b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else? (a) Complete the table below. Response Never Rarely Probability Sometimes Most of the time Always Response Frequency 106 332 592 1215 2767 Never Rarely Sometimes Most of the time Always (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (Round to the nearest thousandth as needed.) (b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else? ||||||
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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In a national survey college students were asked, "How often do you wear a seat belt when riding in a
car driven by someone else?" The response frequencies appear in the table to the right. (a) Construct
a probability model for seat-belt use by a passenger. (b) Would you consider it unusual to find a
college student who never wears a seat belt when riding in a car driven by someone else?
(a) Complete the table below.
Response
Never
Rarely
Probability
Sometimes
Most of the time
Always
...
Response
Never
Rarely
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
(b) Would you consider it unusual to find a college student who never wears a seat belt when riding in a car driven by someone else?
A. Yes, because 0.01 <P(never) <0.10.
B. Yes, because P(never) < 0.05.
C. No, because the probability of an unusual event is 0.
OD. No, because there were 106 people in the survey who said they never wear their seat belt.
Sometimes
Most of the time
Always
Frequency
106
332
592
1215
2767
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