In a class of 21 students, how many scored above the class average (arithmetic mean) on the final exam?
(1) The class average is 78
(2) The class median is 78.
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AStatement (1) ALONE is sufficient but statement (2) ALONE is not sufficient.
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BStatement (2) ALONE is sufficient but statement (1) ALONE is not sufficient.
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CBOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EE.Statements (1) and (2) TOGETHER are not sufficient.
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正确答案: E