[問題]數學

看板GRE (GRE入學考試)作者 (一體兩面)時間15年前 (2011/03/26 13:23), 編輯推噓0(007)
留言7則, 3人參與, 最新討論串1/1
可以說明一下題目嗎?? 看不太懂,謝謝 The odds that a centain event will occur is the ratio of the probability that the event will occur to the probability that it will not occur. If the odds that Pat will win a prize are 4 to 3, what is the probability that Pat will not win the prize? Ans:3/7 The centain event 是指win the prize嗎?? 4 to 3 是說四次有三次會贏嗎?? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.122.193.233

03/26 13:36, , 1F
By definition, let the probability of winning=p
03/26 13:36, 1F

03/26 13:37, , 2F
then p/(1-p)=4/3. Hence (1-p)=3/7
03/26 13:37, 2F

03/26 22:23, , 3F
弱弱的問一下...題目是甚麼意思阿@@ 謝謝
03/26 22:23, 3F

03/26 22:25, , 4F
odd(勝率)為一個事件發生的機率語不發生機率的比值
03/26 22:25, 4F

03/26 22:27, , 5F
現在此事件為"Pat will win a prize"
03/26 22:27, 5F

03/26 22:28, , 6F
此事件的勝率為4/3, 則此事件不發生的機率為何
03/26 22:28, 6F

03/27 21:38, , 7F
謝謝解答
03/27 21:38, 7F
文章代碼(AID): #1DZNXWTh (GRE)
文章代碼(AID): #1DZNXWTh (GRE)