A.普查
B.抽樣調(diào)查
C.重點(diǎn)調(diào)查
D.典型調(diào)查
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A.年齡
B.學(xué)習(xí)成績(jī)
C.專業(yè)
D.個(gè)人愛(ài)好
A.是等距分組
B.第一組假定下限是0
C.相鄰組限是重疊的
D.分組標(biāo)志為連續(xù)型變量
E.某學(xué)生的成績(jī)80分應(yīng)歸在70-80這一組
A.15次方
B.16次方
C.17次方
D.18次方
A.1.2
B.0.8
C.1.25
D.0.83
A.比例相對(duì)指標(biāo)
B.結(jié)構(gòu)相對(duì)指標(biāo)
C.比較相對(duì)指標(biāo)
D.強(qiáng)度相對(duì)指標(biāo)
最新試題
Which of the following is best to show the percentage of a total budget that is spent on each category of items?()
為什么在計(jì)算平均指標(biāo)的基礎(chǔ)上還有必要進(jìn)一步計(jì)算變異指標(biāo)?
One advantage of a stem and leaf plot over a frequency distribution is that ().
The number of phone calls arriving at a switchboard each hour has been recorded and the following frequency distribution has been developed.What is the cumulative frequency of the third class?()
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()
一個(gè)地區(qū)一定時(shí)期的商品零售額屬于()
Descriptive statistics deals with methods of()
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 is not the goal of descriptive statistics?()
某班的學(xué)習(xí)按考試成績(jī)分為60分以下,60-70,70-80,80-90,90-100,這種分組()