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In a class of 28 students, the teacher selects four people at random to participate in a geography contest. What is the probability that this group of four students includes at least two of the top three geography students in the class?

 May 23, 2020
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hi guest!

 

this question was already answered by melody here: https://web2.0calc.com/questions/help_89569

 

:)

 May 23, 2020

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