A.均值為0
B.方差為1
C.標準差為1
D.均值為1
E.最大值為1
您可能感興趣的試卷
你可能感興趣的試題
A.同度量作用
B.權數(shù)作用
C.平衡作用
D.基準作用
E.比較作用
A.拉氏指數(shù)
B.派氏指數(shù)
C.楊格指數(shù)
D.馬埃指數(shù)
E.費暄指數(shù)
A.大中取大準則
B.小中取大準則
C.渴望水平準則
D.期望損益準則
E.最大可能準則
A.客觀環(huán)境的可能狀態(tài)集
B.決策者的可行行動集
C.決策行動的收益函數(shù)
D.決策樹
E.決策者
A.環(huán)比法
B.定基法
C.方程法
D.算術平均法
E.幾何平均法
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). The average number of absences per employee, calculated from the personnel data of all employees, is a ().
在組距數(shù)列中,下限就是()
什么是季節(jié)變動?研究它的意義何在?如何測定季節(jié)變動?
某廠某年職工勞動生產(chǎn)率為20000元,是歷史最高水平的1.2倍。這里的1.2倍是()
某企業(yè)2018年技術工占50%,2019年新招收了一批學徒工,使學徒工的比重增加了10%。假定全廠各級工資水平均無變化,則2019年職工總平均工資將()
One rule that must always be followed in constructing frequency distributions is that ().
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?()
對全國各鐵路交通樞紐的貨運量、貨物種類等進行調查,以了解全國鐵路貨運概況。這種調查屬于()
One advantage of a stem and leaf plot over a frequency distribution is that ().
如果居民按報告期價格購買商品需多支出40萬元,報告期商品銷售額為200萬元,則價格指數(shù)為()