A.總標(biāo)題
B.橫行標(biāo)題
C.縱欄標(biāo)題
D.數(shù)據(jù)資料
E.表末附注
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A.同質(zhì)性
B.互斥性
C.完備性
D.分散性
E.整齊性
A.抽簽法
B.搖獎法
C.配對法
D.配額法
E.隨機數(shù)表法
A.實際經(jīng)濟(jì)增長率
B.通貨膨脹率
C.失業(yè)率
D.痛苦指數(shù)
A.取值都在0與1之間
B.均值為0
C.均值為1
D.標(biāo)準(zhǔn)差為1
A.2%
B.0.5%
C.5%
D.4.8%
最新試題
對全國各鐵路交通樞紐的貨運量、貨物種類等進(jìn)行調(diào)查,以了解全國鐵路貨運概況。這種調(diào)查屬于()
One rule that must always be followed in constructing frequency distributions is that ().
A cumulative frequency polygon is also called ().
以2000年a0為最初水平,2016年an為最末水平,計算鋼產(chǎn)量的年平均發(fā)展速度時,須開()
企業(yè)生產(chǎn)一種產(chǎn)品需順次經(jīng)過四個車間,這四個車間的廢品率分別為1.5%、2.0%、2.0%和1.0%。該企業(yè)生產(chǎn)這種產(chǎn)品的平均廢品率是多少?
A summary measure that is computed from a sample to describe a characteristic of the population is called()
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). The average number of absences per employee, calculated from the personnel data of all employees, is a ().
The number of class intervals in a frequency distribution is usually between ().
品合格率指標(biāo)是()
如果居民按報告期價格購買商品需多支出40萬元,報告期商品銷售額為200萬元,則價格指數(shù)為()