A.標(biāo)準(zhǔn)數(shù)值型
B.用戶自定義型
C.字符型
D.日期型
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A.變量名
B.對齊方式
C.字體大小
D.缺失值
A.明確分析目標(biāo)
B.建立數(shù)據(jù)文件
C.加工整理數(shù)據(jù)
D.數(shù)據(jù)分析
A.數(shù)據(jù)編輯窗口
B.結(jié)果輸出窗口
C.語句窗口
D.命令窗口
最新試題
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?()
常用的長期趨勢測定的方法有哪些?各有什么特點?
A summary measure that is computed from a sample to describe a characteristic of the population is called()
最能反映離散程度的指標(biāo)是()
時間序列構(gòu)成因素有哪些?分解的基本原理和思路是什么?
The number of class intervals in a frequency distribution is usually between ().
品合格率指標(biāo)是()
One rule that must always be followed in constructing frequency distributions is that ().
變量數(shù)列中,各組頻率之和應(yīng)()
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()