問題詳情
16. A company gets graphics cards from two sources. The first source provides 40% of thecards, and the second source provides 60% of the cards. Past experience has shown that
ofthe cards from the first source are found to be defective, while
of the cards from the secondsource are found to be defective. If a graphics cards is selected and found to be defective,what is the probability it was provided by the first source?
(A)
(B)
(C)
(D)
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增