問題詳情
20. 一袋子中有4個圓球，球上分別標記號碼4。已知每一個球被取到的機會相等，若自袋中任取兩次球(一次一球，取後放回)，則取出的兩球號碼是4或3的機率為何？
(A)1/2
(B)1/4
(C)1/8
(D)1/16
(A)1/2
(B)1/4
(C)1/8
(D)1/16
參考答案
無參考答案
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