單項(xiàng)選擇題在頻數(shù)分析時(shí),F(xiàn)ormat按鈕的功能是()

A.顯示頻數(shù)分布表
B.選擇繪制統(tǒng)計(jì)圖形
C.調(diào)整頻數(shù)分布表中數(shù)據(jù)的輸出順序
D.選擇統(tǒng)計(jì)圖形的格式


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2.單項(xiàng)選擇題數(shù)據(jù)分組一般是針對(duì)哪種類型的數(shù)據(jù)()

A.定類型
B.定序型
C.定距型
D.定比變量

3.單項(xiàng)選擇題在分類匯總中,在Aggregate  Variable框中,應(yīng)當(dāng)選擇的是() 

A.分類變量
B.分組變量
C.匯總變量
D.目標(biāo)變量

4.單項(xiàng)選擇題如果希望統(tǒng)計(jì)全班同學(xué)中,每個(gè)人得優(yōu)的門數(shù)多少,應(yīng)當(dāng)選用的菜單是()

A.Transform-Compute
B.Transform-Count
C.Transform-Recode
D.Data-Aggregate

5.單項(xiàng)選擇題變量計(jì)算應(yīng)選擇的菜單是()

A.Transform-Compute
B.Data-Compute
C.Edit-Compute
D.Data-Transpose

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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()

題型:多項(xiàng)選擇題

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?

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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 ().

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什么是季節(jié)變動(dòng)?研究它的意義何在?如何測(cè)定季節(jié)變動(dòng)?

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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?()

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A summary measure that is computed from a sample to describe a characteristic of the population is called()

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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)?

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變量數(shù)列中,各組頻率之和應(yīng)()

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The number of class intervals in a frequency distribution is usually between ().

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以2000年a0為最初水平,2016年an為最末水平,計(jì)算鋼產(chǎn)量的年平均發(fā)展速度時(shí),須開()

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