median-avg

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arocks: Master | Next Rank: 500 Posts; Posts: 127; Joined: Tue Oct 02, 2007 9:35 am; Thanked: 1 times

median-avg

by arocks » Sun Oct 14, 2007 11:32 am

Class A and B took the same test. For class A, median score is 80, average score is 82; for class B, median score is 78, average score is 74.
Combining A and B, is the average greater than the median?

1). A has 37 students and B has 40 students.
2). A and B have 77 students.

Please explain. Thanks.

IMO - E. OA is A

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