A.比例相對(duì)數(shù)
B.計(jì)劃完成相對(duì)數(shù)
C.強(qiáng)度相對(duì)數(shù)
D.動(dòng)態(tài)相對(duì)數(shù)
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時(shí)間序列構(gòu)成因素有哪些?分解的基本原理和思路是什么?
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 ().
要了解某地區(qū)全部大學(xué)生的就業(yè)情況,那么()
某廠某年職工勞動(dòng)生產(chǎn)率為20000元,是歷史最高水平的1.2倍。這里的1.2倍是()
品合格率指標(biāo)是()
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)?
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
Descriptive statistics deals with methods of()
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)()
Which of the following is not the goal of descriptive statistics?()