Mathematics, 10.03.2020 18:53 alex7881

Elizabeth lives in San Francisco and works in Mountain View. In the morning, she has
3
33 transportation options (take a bus, a cab, or a train) to work, and in the evening she has the same
3
33 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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Elizabeth lives in San Francisco and works in Mountain View. In the morning, she has
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