A.對(duì)離散變量采用重疊分組法 B.對(duì)連續(xù)變量采用重疊分組法 C.對(duì)離散變量采用不重疊分組法 D.對(duì)連續(xù)變量采用不重疊分組法 E.對(duì)連續(xù)變量和離散變量均采用重疊分組法
A.準(zhǔn)確性 B.及時(shí)性 C.完整性 D.科學(xué)性 E.代表性
A.對(duì)原始數(shù)據(jù)進(jìn)行預(yù)處理 B.對(duì)統(tǒng)計(jì)數(shù)據(jù)進(jìn)行分組 C.對(duì)統(tǒng)計(jì)數(shù)據(jù)進(jìn)行匯總 D.對(duì)統(tǒng)計(jì)數(shù)據(jù)進(jìn)行分析 E.編制統(tǒng)計(jì)表、繪制統(tǒng)計(jì)圖