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(duì)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(yǔ)句窗口
D.命令窗口
最新試題
A summary measure that is computed from a sample to describe a characteristic of the population is called()
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()
要了解某地區(qū)全部大學(xué)生的就業(yè)情況,那么()
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 ().
變量數(shù)列中,各組頻率之和應(yīng)()
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
Which of the following is best to show the percentage of a total budget that is spent on each category of items?()
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()
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()
企業(yè)生產(chǎn)一種產(chǎn)品需順次經(jīng)過四個(gè)車間,這四個(gè)車間的廢品率分別為1.5%、2.0%、2.0%和1.0%。該企業(yè)生產(chǎn)這種產(chǎn)品的平均廢品率是多少?