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A.定類型變量
B.定序型變量
C.定距型變量
A.標(biāo)準(zhǔn)數(shù)值型
B.用戶自定義型
C.字符型
D.日期型
A.變量名
B.對齊方式
C.字體大小
D.缺失值
最新試題
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()
為什么在計算平均指標(biāo)的基礎(chǔ)上還有必要進(jìn)一步計算變異指標(biāo)?
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()
One rule that must always be followed in constructing frequency distributions is that ().
Descriptive statistics deals with methods of()
One advantage of a stem and leaf plot over a frequency distribution is that ().
某企業(yè)2018年技術(shù)工占50%,2019年新招收了一批學(xué)徒工,使學(xué)徒工的比重增加了10%。假定全廠各級工資水平均無變化,則2019年職工總平均工資將()
某企業(yè)的生產(chǎn)計劃完成百分比采用如下分組,請指出哪項是正確的()
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?()
最能反映離散程度的指標(biāo)是()