A.每個(gè)組的最小值
B.每個(gè)組的最大值
C.全距中的最大值
D.全距中的最小值
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A.80%~89%,90%~99%,100%~109%,110%以上
B.80%以下,80.1%~90%,90.1%~100%,100.1%~110%
C.90%以下,90%~100%,100%~110%,110%以上
D.85%以下,85%~95%,95%~100%,105%~115%
A.小于1
B.等于1
C.大于1
D.不等于1
A.普查
B.抽樣調(diào)查
C.重點(diǎn)調(diào)查
D.典型調(diào)查
A.年齡
B.學(xué)習(xí)成績(jī)
C.專業(yè)
D.個(gè)人愛(ài)好
A.是等距分組
B.第一組假定下限是0
C.相鄰組限是重疊的
D.分組標(biāo)志為連續(xù)型變量
E.某學(xué)生的成績(jī)80分應(yīng)歸在70-80這一組
最新試題
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 ().
某企業(yè)的生產(chǎn)計(jì)劃完成百分比采用如下分組,請(qǐng)指出哪項(xiàng)是正確的()
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
Which of the following statements is not true?()
變量數(shù)列中,各組頻率之和應(yīng)()
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()
常用的長(zhǎng)期趨勢(shì)測(cè)定的方法有哪些?各有什么特點(diǎn)?
A summary measure that is computed from a sample to describe a characteristic of the population is called()
要了解某地區(qū)全部大學(xué)生的就業(yè)情況,那么()
一個(gè)地區(qū)一定時(shí)期的商品零售額屬于()