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Business, 13.03.2020 01:32 zionboy77

Diana Baniak, searching for an Ecology class, knows that it must be in one of eight classrooms. Since the professor does not allow people to enter after the class has begun, and there is very little time left, she decides to try just four of the rooms at random. How many of the possible different selections of four rooms will succeed in locating the class?

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Diana Baniak, searching for an Ecology class, knows that it must be in one of eight classrooms. Sinc...

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