between 12 and 24 years of age? (b) What is the probability he or she is between 25 and 64 years of age? (c) What is the probability he or she is between 12 and 24 years of age or between 65 and 74 years of age?
between 12 and 24 years of age? (b) What is the probability he or she is between 25 and 64 years of age? (c) What is the probability he or she is between 12 and 24 years of age or between 65 and 74 years of age?
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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Question
In a survey of 3000 Americans aged 12 through 74 years, the following makeup of the moviegoer audience was obtained.
Age | 12–24 | 25–44 | 45–64 | 65–74 |
---|---|---|---|---|
Audience (%) | 30 | 36 | 22 | 12 |
A moviegoer is selected at random from the respondents of the survey.
(a) What is the probability he or she is between 12 and 24 years of age?
(b) What is the probability he or she is between 25 and 64 years of age?
(c) What is the probability he or she is between 12 and 24 years of age or between 65 and 74 years of age?
(b) What is the probability he or she is between 25 and 64 years of age?
(c) What is the probability he or she is between 12 and 24 years of age or between 65 and 74 years of age?
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