A.Summarising data B.Displaying aspects of the collected data C.Reporting numerical findings D.Estimating characteristics of the population
A.算術(shù)平均數(shù) B.中位數(shù) C.眾數(shù) D.調(diào)和平均數(shù)
A.7~13 B.8~12 C.9~11 D.9.5~10.5
A.各組的變量值 B.各組的次數(shù) C.各組的組中值 D.各組的頻率 E.各組的密度
A.統(tǒng)計(jì)資料的收集和分析B.理論統(tǒng)計(jì)和運(yùn)用統(tǒng)計(jì)C.統(tǒng)計(jì)預(yù)測(cè)和決策D.描述統(tǒng)計(jì)和推斷統(tǒng)計(jì)
A.1.1022 B.2 C.30 D.1.4847
A.時(shí)點(diǎn)序列 B.時(shí)期序列 C.特征序列 D.平穩(wěn)序列
A.68% B.95% C.99.7% D.none of the above
A.兩點(diǎn)分布 B.二項(xiàng)分布 C.超幾何分布 D.泊松分布