問題詳情
4.袋中有大小相同的 3 白球、4 紅球、5 黃球,今自袋中取出一球,取出後不放回,共取三次球,則在第一次取到白球的條件下,三次取到球都異色的機率?
(A)
(B)
(C)
(D)
(A)

(B)

(C)

(D)

參考答案
答案:A
難度:困難0.222222
統計:A(2),B(2),C(1),D(2),E(0)
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