A.柱形圖
B.餅圖
C.直方圖
D.折線圖
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A.定類型
B.定序型
C.定距型
D.定比變量
A.分類變量
B.分組變量
C.匯總變量
D.目標(biāo)變量
A.Transform－Compute
B.Transform－Count
C.Transform－Recode
D.Data－Aggregate
A.Transform－Compute
B.Data－Compute
C.Edit－Compute
D.Data－Transpose
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最新試題
Which of the following statements is not true？（）
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)？
Descriptive statistics deals with methods of（）
A cumulative frequency polygon is also called （）.
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(kāi)（）
企業(yè)生產(chǎn)一種產(chǎn)品需順次經(jīng)過(guò)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？
對(duì)全國(guó)各鐵路交通樞紐的貨運(yùn)量、貨物種類等進(jìn)行調(diào)查，以了解全國(guó)鐵路貨運(yùn)概況。這種調(diào)查屬于（）
One rule that must always be followed in constructing frequency distributions is that （）.
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). Personnel records of 50 employees are selected for analysis. (The plant employs 250.) For this study, the average number days absent for these 50 employees is a （）.
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？（）