A.數(shù)據(jù)來(lái)源是否可靠B.數(shù)據(jù)有誤C.數(shù)據(jù)的采集方法不正確D.數(shù)據(jù)的記錄、抄寫有誤E.異常值的處理
A.實(shí)驗(yàn)B.數(shù)據(jù)C.結(jié)果D.方法和工具