A.同質(zhì)性
B.互斥性
C.完備性
D.分散性
E.整齊性
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A.抽簽法
B.搖獎(jiǎng)法
C.配對(duì)法
D.配額法
E.隨機(jī)數(shù)表法
A.實(shí)際經(jīng)濟(jì)增長(zhǎng)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%
A.總指數(shù)大于所有的個(gè)體指數(shù)
B.總指數(shù)小于所有的個(gè)體指數(shù)
C.總指數(shù)介于個(gè)體指數(shù)的最大值與最小值之間
D.上述三種情況都可能發(fā)生
最新試題
常用的長(zhǎng)期趨勢(shì)測(cè)定的方法有哪些?各有什么特點(diǎn)?
如果居民按報(bào)告期價(jià)格購(gòu)買商品需多支出40萬(wàn)元,報(bào)告期商品銷售額為200萬(wàn)元,則價(jià)格指數(shù)為()
Which of the following statements is not true?()
對(duì)全國(guó)各鐵路交通樞紐的貨運(yùn)量、貨物種類等進(jìn)行調(diào)查,以了解全國(guó)鐵路貨運(yùn)概況。這種調(diào)查屬于()
在組距數(shù)列中,下限就是()
品合格率指標(biāo)是()
If the individual class frequency is divided by the total frequency, the result is the ().
One advantage of a stem and leaf plot over a frequency distribution is that ().
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 ().
什么是季節(jié)變動(dòng)?研究它的意義何在?如何測(cè)定季節(jié)變動(dòng)?