A.Both file iprovide cases
B.External file is keyed table
C.Working data file is keyed table
D.Indicate case source as variable
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A.待合并的兩個(gè)數(shù)據(jù)文件的數(shù)據(jù)結(jié)構(gòu)完全相同
B.可以是兩個(gè)完全不相干的數(shù)據(jù)文件
C.在兩個(gè)數(shù)據(jù)文件中,數(shù)據(jù)含義相同的數(shù)據(jù)項(xiàng)最好起相同的變量名
D.待合并的兩個(gè)數(shù)據(jù)文件的個(gè)案數(shù)相同
A.Name
B.Label
C.Values
D.Missing
A.定類型變量
B.定序型變量
C.定距型變量
A.SPSS數(shù)據(jù)文件和Excel表格是一樣的
B.數(shù)據(jù)文件中一行或一列是一個(gè)變量
C.數(shù)據(jù)文件中有變量視窗和數(shù)據(jù)視窗兩個(gè)視窗
D.SPSS數(shù)據(jù)文件可以用Excel打開
A.原始數(shù)據(jù)的組織方式
B.計(jì)數(shù)數(shù)據(jù)的組織形式
最新試題
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()
Which of the following is not the goal of descriptive statistics?()
One rule that must always be followed in constructing frequency distributions is that ().
最能反映離散程度的指標(biāo)是()
Which of the following is best to show the percentage of a total budget that is spent on each category of items?()
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(jí)工資水平均無變化,則2019年職工總平均工資將()
品合格率指標(biāo)是()
The number of class intervals in a frequency distribution is usually between ().
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)?
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)?