a. What is the probability that the executive has not traveled internationally and does not speak a foreign language fluently? b.What is the probability that the executive does not speak a foreign language fluently?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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part A B

Question 1
In a survey of top executives, it was found that 54% had either traveled internationally on
business or could fluently speak a foreign language. The probability that an executive
who had not traveled internationally could speak a foreign language was 20%. It was
found that only 2% of the executives had traveled internationally and could speak a
foreign language.
Imagine we randomly pick a top executive who answered the survey.
a.What is the probability that the executive has not traveled internationally and does not
speak a foreign language fluently?
b.What is the probability that the executive does not speak a foreign language
fluently?
c.What is the probaility that an executive has not traveled internationally?
d. If we had a random sample of 10 top executives (who responded to the survey), what
would be the probability that two had traveled internationally?
-.
Transcribed Image Text:Question 1 In a survey of top executives, it was found that 54% had either traveled internationally on business or could fluently speak a foreign language. The probability that an executive who had not traveled internationally could speak a foreign language was 20%. It was found that only 2% of the executives had traveled internationally and could speak a foreign language. Imagine we randomly pick a top executive who answered the survey. a.What is the probability that the executive has not traveled internationally and does not speak a foreign language fluently? b.What is the probability that the executive does not speak a foreign language fluently? c.What is the probaility that an executive has not traveled internationally? d. If we had a random sample of 10 top executives (who responded to the survey), what would be the probability that two had traveled internationally? -.
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