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
您可能感興趣的試卷
你可能感興趣的試題
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
A.正確收集數(shù)據(jù)
B.加工整理數(shù)據(jù)
C.分析數(shù)據(jù)
D.明確分析目標(biāo)
最新試題
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 ().
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()
A cumulative frequency polygon is also called ().
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()
以2000年a0為最初水平,2016年an為最末水平,計(jì)算鋼產(chǎn)量的年平均發(fā)展速度時(shí),須開()
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)?
One rule that must always be followed in constructing frequency distributions is that ().
A cumulative frequency distribution would provide().
A summary measure that is computed from a sample to describe a characteristic of the population is called()