Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Chapter 3, Problem 125BITH
Approximately 86.5% of Americans commute to work by car, truck, or van. Out of that group, 84.6% drive alone and 15.4% drive In a carpool. Approximately 3.9% walk to work and approximately 5.3% take public transportation.
a. Construct a table or a tree diagram of the situation. Include a branch for all other
b. Assuming that the walkers walk alone, what percent of all commuters navel alone to work?
c. Suppose that 1,000 workers are randomly selected. How many would you expect to travel alone to work?
d. Suppose that 1.000 workers are randomly selected. How many would you expect to drive In a carpool?
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Chapter 3 Solutions
Introductory Statistics
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