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?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.3: Conditional Probability; Independent Events; Bayes' Theorem
Problem 65E
Related questions
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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