[考題] stated as odds is...

看板Eng-Class作者 (現實的翅膀)時間13年前 (2012/06/04 22:20), 編輯推噓1(101)
留言2則, 1人參與, 最新討論串1/1
題目是: The probability that the DJIA will increase tomorror is 2/3. The probability of an increase in the DJIA stated as odds is ____. Ans: two-to-one 想請問的是,第一句的意思是:明天DJIA漲的機率是2/3 第二句就不懂了 查了一下stated as odd指的是相反的意思 所以答案應該是1/3吧? 解答算法卻是 2/3 ___ = 2/1 1/3 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 123.195.194.110

06/05 16:08, , 1F
odds是事件發生與事件不發生的比率,所以2:1或2/1沒錯。
06/05 16:08, 1F

06/05 16:09, , 2F
stated as odds: 上漲機率以odds比率加以表示
06/05 16:09, 2F
文章代碼(AID): #1FpCGG-k (Eng-Class)