A.模型设定误差
B.对y的观测误差
C.对β0的估计错误
D.对β1的估计错误
E.各种细小的偶然误差
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A.环比变换
B.对数变换
C.差分变换
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E.对数差分变换
A.马埃指数
B.杨格指数
C.拉氏指数
D.费暄指数
E.派氏指数
A.实际经济增长率
B.名义经济增长率
C.通货膨胀率
D.失业率
A.0.5%
B.2%
C.4.8%
D.5%
A.杨格综合指数
B.马埃综合指数
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D.平均指数
A.方案枝
B.状态枝
C.决策点
D.状态点
A.大中取小原则
B.小中取大原则
C.大中取大原则
D.折中原则
A.n
B.p
C.n-p
D.n+p
A.均大于0
B.均等于0
C.均小于0
D.均不为0
A.线性函数依存关系
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最新试题
Descriptive statistics deals with methods of()
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?()
One advantage of a stem and leaf plot over a frequency distribution is that ().
什么是季节变动?研究它的意义何在?如何测定季节变动?
某企业2018年技术工占50%,2019年新招收了一批学徒工,使学徒工的比重增加了10%。假定全厂各级工资水平均无变化,则2019年职工总平均工资将()
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 cumulative frequency of the third class?()
One rule that must always be followed in constructing frequency distributions is that ().
常用的长期趋势测定的方法有哪些?各有什么特点?
以2000年a0为最初水平,2016年an为最末水平,计算钢产量的年平均发展速度时,须开()
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 ().