In a large metropolitan area, 65% of commuters ride the train only, 18% ride the bus only,

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In a large metropolitan area, 65% of commuters ride the train only, 18% ride the bus only, and 6% ride both the train and the bus to get to the central business district.
a. What is the probability that a randomly selected commuter does not ride the train to the central business district?

b. What is the probability that a randomly selected commuter rides neither the train nor the bus to the central business district?
c. If a randomly selected commuter rides the bus, what is the probability that he or she also rides the train?

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Business Statistics A Decision Making Approach

ISBN: 9780134496498

10th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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