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16. 設隨機變數 X 服從於平均數為 2,標準差為 4 的常態分配。若 為由其中所抽出的一組大小為 n 之隨機樣本,且 ,則下列何者是正確的? (A) (B) (C) (D) (E)以上皆非
問題詳情
16. 設隨機變數 X 服從於平均數為 2,標準差為 4 的常態分配。若
為由其中所抽出的一組大小為 n 之隨機樣本,且
,則下列何者是正確的?
(A)
(B)
(C)
(D)
(E)以上皆非
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[無官方正解]
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