A.橫截面數(shù)據(jù)B.時(shí)間序列數(shù)據(jù)C.修勻數(shù)據(jù)D.原始數(shù)據(jù)
A.異方差問(wèn)題 B.序列相關(guān)問(wèn)題 C.多重共線性問(wèn)題 D.隨機(jī)解釋變量問(wèn)題
A.ρ≈0 B.ρ≈1 C.-1<ρ<0 D.0<ρ<1