A.眾數(shù) B.極差 C.幾何平均數(shù) D.算術(shù)平均數(shù)
A.極差 B.眾數(shù) C.中位數(shù) D.算術(shù)平均數(shù)
A.75 B.85 C.90 D.150
A.5 B.1 C.5/4 D.2
A.35.4% B.33.9% C.34.1% D.36.2%