Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Textbook Question
Chapter 1, Problem 84H
Forbes magazine published data on the best small firms in 2012. These were firms which had been publicly traded for at least a year. have a stock price of at least S3 per share, and have reported annual revenue between $3 million and $1 billion. Table 1.37 shows the ages of the chief executive officers for the first 60 ranked firms.
Table 1.37
a. What is the frequency for CEO ages between 34 and 63?
b. What percentage of CEOs are 63 years or older?
c. What is the relative frequency of ages under 30?
d. What is the cumulative relative frequency for CEOs younger than 55?
e. Which graph shows the relative frequency and which shows the cumulative relative frequency?
Figure 1.13
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Chapter 1 Solutions
Introductory Statistics
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