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?

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