問題詳情
22.如圖(十一)，有三條繩子穿過一片木板，姊妹兩人分別站在木板的左、右兩邊，各選該邊的一條繩子。若每邊每條繩子被選中的機會相等，則兩人選到同一條繩子的機率為何？圖(十一) 
(A) 1/2
(B)1/3
(C) 1/6
(D)1/9
(A) 1/2
(B)1/3
(C) 1/6
(D)1/9
參考答案
答案：B
難度：適中0.693878
統計：A(1),B(34),C(5),D(9),E(0)
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