應(yīng)用統(tǒng)計(jì)學(xué)章節(jié)練習(xí)(2020.05.25)

A.28.4165
B.807.5
C.25.4165
D.646.0

A. 5
B. 10
C. 20
D. 50

A.絕對(duì)數(shù)時(shí)點(diǎn)數(shù)列
B.相對(duì)數(shù)時(shí)間數(shù)列
C.平均數(shù)時(shí)間數(shù)列
D.絕對(duì)數(shù)時(shí)期數(shù)列

A.各組分布次數(shù)比率之比
B.各組分布次數(shù)與總次數(shù)之比
C.各組分布次數(shù)相互之比
D.各組比率相互之比

A.時(shí)期數(shù)列
B.時(shí)點(diǎn)數(shù)列
C.相對(duì)數(shù)時(shí)間數(shù)列
D.絕對(duì)數(shù)時(shí)間數(shù)列
E.平均數(shù)時(shí)間數(shù)列

A.算術(shù)平均數(shù)和中位數(shù)
B.幾何平均數(shù)和眾數(shù)
C.算術(shù)平均數(shù)和眾數(shù)
D.眾數(shù)和中位數(shù)