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Suppose that three numbers are selected one by one, at random, and without replacement, from the set of integers {1, 2, 3, . . . , n}. what is the probability that the third number falls between the first two if the first number is smaller than the second?

User Jeremycole
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A - the third number falls between the first two

B - the first number is smaller than the second


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User Sabyasachi
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