五位部門(mén)經(jīng)理的年收入如表:
要描述五位部門(mén)經(jīng)理的年收入的一般水平, 用()來(lái)測(cè)度這一集中趨勢(shì)比較合適。
A.眾數(shù)
B.中位數(shù)
C.平均數(shù)
D.極差
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A.A與B相互獨(dú)立
B.A與B不獨(dú)立
C.A與B相互排斥
D.A與B相關(guān)
A.統(tǒng)計(jì)資料的收集和分析
B.理論統(tǒng)計(jì)和運(yùn)用統(tǒng)計(jì)
C.統(tǒng)計(jì)預(yù)測(cè)和決策
D.描述統(tǒng)計(jì)和推斷統(tǒng)計(jì)
最新試題
一個(gè)地區(qū)一定時(shí)期的商品零售額屬于()
If the individual class frequency is divided by the total frequency, the result is the ().
Descriptive statistics deals with methods of()
企業(yè)生產(chǎn)一種產(chǎn)品需順次經(jīng)過(guò)四個(gè)車(chē)間,這四個(gè)車(chē)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?
Which of the following statements is not true?()
如果居民按報(bào)告期價(jià)格購(gòu)買(mǎi)商品需多支出40萬(wàn)元,報(bào)告期商品銷(xiāo)售額為200萬(wàn)元,則價(jià)格指數(shù)為()
Which of the following is best to show the percentage of a total budget that is spent on each category of items?()
變量數(shù)列中,各組頻率之和應(yīng)()
A cumulative frequency distribution would provide().
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 ().