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Mathematics 19 Online
OpenStudy (anonymous):

A class consists of 8 sophomores and 4 juniors. Two students are selected at random to form a com- mittee. Find the expected number of juniors on this committee. (A) 1/3 (B) 2/3 (C) 1/2 (D) 0 (E) 1 (F) none of the above

OpenStudy (perl):

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OpenStudy (perl):

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