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Mathematics, 23.07.2019 15:10 Frankia

Elizabeth lives in san francisco and works in mountain view. in the morning she has 3 transportation options (take a bus, a cab, or a train) to work, and in the evening she has the same 3 choices for her trip home. if elizabeth randomly chooses her ride in the morning and in the evening, what is the probability that she’ll use a cab exactly one time.

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