[計量] 兩題計量請教

看板GRE (GRE入學考試)作者 (同天內只計一次)時間8年前 (2016/09/06 21:53), 編輯推噓1(101)
留言2則, 2人參與, 最新討論串7/9 (看更多)
1. In a certain experiment, the probability that event E will occur is 0.6, which is greater than the probability that event F will occur. A.the probability that neither E nor F will occur. B.0.5 2. A box contains 30 marbles of which 6 are red, 7 are blue, 8 are yellow, and the rest are green. Marbles are selected randomly from the box one at a time without replacement. The selection process stops as soon as 2 marbles of different color have been selected. What is the greatest number of selections that might be needed in order to stop the process. A10 B9 C8 D7 E6 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.112.77.143 ※ 文章網址: https://www.ptt.cc/bbs/GRE/M.1473169987.A.28D.html

09/06 21:59, , 1F
想先確認:第一題答案是B第二題答案是A嗎
09/06 21:59, 1F

09/06 22:42, , 2F
啊啊不好意思忘記附解答,樓上強者全部答對了QQ
09/06 22:42, 2F
文章代碼(AID): #1Npif3AD (GRE)
文章代碼(AID): #1Npif3AD (GRE)