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某班抽取6名同学参加体能测试,成绩如下:85,95,85,80,80,85.下列...
某班抽取6名同学参加体能测试,成绩如下:85,95,85,80,80,85.下列表述错误的是( )
A.众数是85
B.平均数是85
C.中位数是80
D.极差是15
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