[計量] 一題數學

看板GRE作者 (miste)時間16年前 (2008/05/15 01:33), 編輯推噓3(303)
留言6則, 4人參與, 最新討論串1/11 (看更多)
The odds in favor of winning a game can be found by computing the ratio of the probability of wining to the probability of not winning. if the probability that Pat will win a game is 4/9 , what are the odds that Pat will win the game? (A) 4 to 5 (B) 4 to 9 (C) 5 to 4 (D) 5 to 9 (E) 9 to 5 Ans (A) 想請問為什麼答案不是B 謝謝~~ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 202.132.194.102

05/15 04:23, , 1F
贏的機率4/9, 贏比輸 = 4/5
05/15 04:23, 1F

05/15 10:35, , 2F
這題不是問贏的機率嗎?
05/15 10:35, 2F

05/15 11:17, , 3F
題目說明了odds的算法=贏的機率/沒贏的機率
05/15 11:17, 3F

05/15 11:18, , 4F
so Pat's odds equals (4/9)/(5/9)=4/5
05/15 11:18, 4F

05/15 11:25, , 5F
瞭解了 感謝
05/15 11:25, 5F

05/15 12:32, , 6F
謝謝
05/15 12:32, 6F
文章代碼(AID): #18Ao9LVA (GRE)
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文章代碼(AID): #18Ao9LVA (GRE)