A.分類變量
B.分組變量
C.匯總變量
D.目標(biāo)變量
您可能感興趣的試卷
你可能感興趣的試題
A.If condition is satisfied
B.Random sample of cases－Approxomately
C.Use filter Variable
D.Random sample of cases－Exactly
A.計(jì)算三門課程成績的平均分
B.計(jì)算三門課程成績的標(biāo)準(zhǔn)差
C.計(jì)算三門課程成績的方差
D.計(jì)算三門課程成績的總分
A.Both file iprovide cases
B.External file is keyed table
C.Working data file is keyed table
D.Indicate case source as variable
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
最新試題
One advantage of a stem and leaf plot over a frequency distribution is that （）.
Which of the following is best to show the percentage of a total budget that is spent on each category of items？（）
If data are grouped into intervals and the number of items in each group is listed, this could be called a （）
在組距數(shù)列中，下限就是（）
對(duì)某班級(jí)學(xué)生的生活狀況進(jìn)行統(tǒng)計(jì)調(diào)查，下列標(biāo)志中屬于不變標(biāo)志的是（）
A cumulative frequency distribution would provide（）.
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). Personnel records of 50 employees are selected for analysis. (The plant employs 250.) For this study, the average number days absent for these 50 employees is a （）.
最能反映離散程度的指標(biāo)是（）
變量數(shù)列中，各組頻率之和應(yīng)（）
A student achieves an 82 on the first test in a statistics course. From this, she assumes that her average at the end of the semester (after other tests) will be about 82. This is an example of （）.