A.相等 B.重疊 C.間斷 D.不等
A.分組標(biāo)志和指標(biāo) B.分組標(biāo)志和次數(shù) C.數(shù)量分組標(biāo)志數(shù)值和頻數(shù) D.品質(zhì)分組標(biāo)志屬性和頻數(shù)
A.按數(shù)量標(biāo)志分組的數(shù)列 B.按品質(zhì)標(biāo)志分組的數(shù)列 C.按數(shù)量標(biāo)志或品質(zhì)標(biāo)志分組的數(shù)列 D.按數(shù)量指標(biāo)分組的數(shù)列