A survey at Metropolitan College shows that among 750 economics majors, every student has taken at least
Question:
A survey at Metropolitan College shows that among 750 economics majors, every student has taken at least one course in either economics or statistics. We also know that:
450 students have taken statistics.
450 have taken microeconomics.
450 have taken macroeconomics.
250 have taken both micro- and macroeconomics.
200 have taken both microeconomics and statistics.
250 have taken both macroeconomics and statistics.
(a) How many students have taken all three courses?
(b) What is the probability that a student who we know has taken a course in microeconomics has also taken statistics?
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This question involves one of the principles of set theory specifically the principle of inclusion and exclusion It tells us that if we want to know t...View the full answer
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Related Book For 
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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