A.統(tǒng)計(jì)描述和統(tǒng)計(jì)圖表 B.參數(shù)估計(jì)與假設(shè)檢驗(yàn) C.統(tǒng)計(jì)預(yù)測和統(tǒng)計(jì)控制 D.區(qū)間估計(jì)和點(diǎn)估計(jì) E.參數(shù)估計(jì)和統(tǒng)計(jì)預(yù)測
A.λ>σ B.λ<σ C.λ=σ2 D. E.λ與σ無固定關(guān)系
A.1% B.99% C.0.5% D.0.05% E.99.5%