A.數(shù)學(xué)期望為p
B.數(shù)學(xué)期望為q
C.方差為p+q
D.方差為pq
E.方差為p/q
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A.概率分布表
B.概率分布圖
C.概率分布函數(shù)式
D.回歸函數(shù)式
E.方差分析表
A.柱狀圖
B.直方圖
C.折線圖
D.散點圖
E.立方圖
A.推斷誤差
B.不確定性
C.邏輯錯誤
D.不可行性
E.外延錯誤
A.總體指標(biāo)
B.個體指標(biāo)
C.樣本指標(biāo)
D.子總體指標(biāo)
E.類指標(biāo)
A.存量指標(biāo)
B.流量指標(biāo)
C.水平指標(biāo)
D.實物指標(biāo)
E.價值指標(biāo)
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最新試題
品合格率指標(biāo)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 ().
以2000年a0為最初水平,2016年an為最末水平,計算鋼產(chǎn)量的年平均發(fā)展速度時,須開()
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?()
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()
一個地區(qū)一定時期的商品零售額屬于()
最能反映離散程度的指標(biāo)是()
One rule that must always be followed in constructing frequency distributions is that ().
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()