A.完備性原則
B.同質(zhì)性原則
C.整齊可比性原則
D.互斥性原則
E.均衡分散性原則
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A.模型設(shè)定誤差
B.對y的觀測誤差
C.對β0的估計錯誤
D.對β1的估計錯誤
E.各種細(xì)小的偶然誤差
A.環(huán)比變換
B.對數(shù)變換
C.差分變換
D.移動平均變換
E.對數(shù)差分變換
A.馬埃指數(shù)
B.楊格指數(shù)
C.拉氏指數(shù)
D.費(fèi)暄指數(shù)
E.派氏指數(shù)
A.實(shí)際經(jīng)濟(jì)增長率
B.名義經(jīng)濟(jì)增長率
C.通貨膨脹率
D.失業(yè)率
A.0.5%
B.2%
C.4.8%
D.5%
最新試題
A cumulative frequency polygon is also called （）.
Which of the following is best to show the percentage of a total budget that is spent on each category of items？（）
A cumulative frequency distribution would provide（）.
變量數(shù)列中，各組頻率之和應(yīng)（）
常用的長期趨勢測定的方法有哪些？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（）
在組距數(shù)列中，下限就是（）
A student achieves an 82 on the first test in a statistics course. From this, she assumes that her average at the end of the semester (after other tests) will be about 82. This is an example 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？（）
某企業(yè)2018年技術(shù)工占50%，2019年新招收了一批學(xué)徒工，使學(xué)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（）