單項(xiàng)選擇題

對(duì)于一組統(tǒng)計(jì)數(shù)據(jù):2,4,4,5,6,9.下列說(shuō)法錯(cuò)誤的是眾數(shù)是4B.中位數(shù)是5C.極差是7D.平均數(shù)是5對(duì)于一組統(tǒng)計(jì)數(shù)據(jù):2,4,4,5,6,9.下列說(shuō)法錯(cuò)誤的是眾數(shù)是4 B.中位數(shù)是5 C.極差是7 D.平均數(shù)是5

A.眾數(shù)是4
B.中位數(shù)是5
C.極差是7
D.平均數(shù)是5
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