Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Chapter 3, Problem 81H
After Rob Ford, the mayor of Toronto, announced his plans to cut budget costs in late 2011. the Forum Research polled 1,046 people to measure the mayors popularity. Everyone polled expressed either approval or disapproval. These are the results their poll produced:
• In early 2011. 60 percent of the population approved of Mayor Ford’s actions In office.
• In mid-2011. 57 percent of the population approved of his actions.
• In late 2011. the percentage of populatiapproval was measured at 42 petcent
a. What Is the
b. What proportion In the poll disapproved of Mayor Ford, according to the results from late 2011?
c. How many people polled responded that they approved of Mayor Ford in late 2011?
d. What is the
e. What Is the probability that a person supported Mayor Ford. based on the data collected in early 2011?
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Chapter 3 Solutions
Introductory Statistics
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