單項(xiàng)選擇題關(guān)于F分布的說(shuō)法,哪個(gè)是正確的() 

A.F0.05,10,20 = 1/F0.95,10,20
B.F0.05,10,20 = 1/F0.05,20,10
C.F0.95,10,20 = 1/F0.95,20,10
D.F0.95,10,20 = 1/F0.05,20,10


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1.單項(xiàng)選擇題關(guān)于假設(shè)檢驗(yàn)的兩類(lèi)錯(cuò)誤,下列說(shuō)法不正確的有()

A.第一類(lèi)錯(cuò)誤被稱(chēng)為棄真錯(cuò)誤
B.第一類(lèi)錯(cuò)誤被稱(chēng)為納偽錯(cuò)誤
C.第二類(lèi)錯(cuò)誤是原假設(shè)不正確,但卻被接受的錯(cuò)誤
D.第一類(lèi)錯(cuò)誤是原假設(shè)正確,但卻被拒絕的錯(cuò)誤

4.單項(xiàng)選擇題所有可能實(shí)驗(yàn)結(jié)果的集合被稱(chēng)為一個(gè)()

A.樣本空間
B.事件
C.實(shí)驗(yàn)
D.概率

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