A.算術(shù)平均數(shù)>中位數(shù)>眾數(shù) B.算術(shù)平均數(shù)<中位數(shù)<眾數(shù) C.算術(shù)平均數(shù)<眾數(shù)<中位數(shù) D.算術(shù)平均數(shù)>眾數(shù)>中位數(shù)
A.變形 B.倒數(shù) C.平均數(shù) D.開(kāi)方數(shù)
A.鐘形分布 B.正J形分布 C.U形分布 D.反J形分布