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Mathematics, 08.10.2020 01:01 bbyany21
Half of all visitors to a library have a library card, of the visitors to the library, 20% use the computers at the library. What is the probability that a visitor, selected at random, has a library card and uses a computer at the library?
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Half of all visitors to a library have a library card, of the visitors to the library, 20% use the c...
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