A.頻數(shù)
B.百分比
C.有效百分比
D.累計(jì)百分比
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A.算術(shù)表達(dá)式
B.條件表達(dá)式
C.變量
D.函數(shù)
A.分類變量
B.分組變量
C.匯總變量
D.目標(biāo)變量
A.If condition is satisfied
B.Random sample of cases-Approxomately
C.Use filter Variable
D.Random sample of cases-Exactly
A.計(jì)算三門課程成績(jī)的平均分
B.計(jì)算三門課程成績(jī)的標(biāo)準(zhǔn)差
C.計(jì)算三門課程成績(jī)的方差
D.計(jì)算三門課程成績(jī)的總分
A.Both file iprovide cases
B.External file is keyed table
C.Working data file is keyed table
D.Indicate case source as variable
最新試題
The number of class intervals in a frequency distribution is usually between ().
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 approximate range of the number of phone calls arriving each hour?()
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
某企業(yè)的生產(chǎn)計(jì)劃完成百分比采用如下分組,請(qǐng)指出哪項(xiàng)是正確的()
如果居民按報(bào)告期價(jià)格購買商品需多支出40萬元,報(bào)告期商品銷售額為200萬元,則價(jià)格指數(shù)為()
品合格率指標(biāo)是()
One rule that must always be followed in constructing frequency distributions is that ().
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 ().
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)?