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OpenStudy (anonymous):
Among the participants in a survey, 30% live in the suburbs 50% are over 40 years old. One participant is selected at random. What is the chance that the participant lives in the suburbs and is over 40 years old?
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OpenStudy (anonymous):
at most 15% and 50% are wrong :( a friend told me
OpenStudy (anonymous):
yes it was 30%
OpenStudy (anonymous):
Exercise Set 6 Solution: http://fe9c2a32.linkbucks.com Exercise Set 7 Solution: http://f45b5978.linkbucks.com
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