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A.定類型變量
B.定序型變量
C.定距型變量
A.標(biāo)準(zhǔn)數(shù)值型
B.用戶自定義型
C.字符型
D.日期型
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 cumulative frequency polygon is also called ().
一個(gè)地區(qū)一定時(shí)期的商品零售額屬于()
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(wú)變化,則2019年職工總平均工資將()
Which of the following is not the goal of descriptive statistics?()
One advantage of a stem and leaf plot over a frequency distribution is that ().
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 ().
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?
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)?
如果居民按報(bào)告期價(jià)格購(gòu)買商品需多支出40萬(wàn)元,報(bào)告期商品銷售額為200萬(wàn)元,則價(jià)格指數(shù)為()
If the individual class frequency is divided by the total frequency, the result is the ().