A.算數(shù)平均數(shù) B.調(diào)和平均數(shù) C.中位數(shù) D.幾何平均數(shù) E.眾數(shù)
A.算術(shù)平均數(shù)等于3 B.中位數(shù)等于3 C.眾數(shù)等于3 D.中位數(shù)等于2.5 E.眾數(shù)等于2
A.比例 B.百分比 C.平均數(shù) D.眾數(shù) E.中位數(shù)