[計量] 請教一題關於機率的題目

看板GRE (GRE入學考試)作者 (小安)時間13年前 (2012/09/11 23:15), 編輯推噓0(000)
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Let A,B,and C denote separate generic traits. Supose the probability that an individual will exbit trait A is 1/2 and the probibility that he exhibits B trait is 3/4 and the probibility that he exibits trait C is3/5. What is the probability that he exhibits only one of the traits? (A)1/6 (B)1/4 (C)11/40 (D)11/36 (E)17/36 答案是c,但我不知道該怎麼算,麻煩各位好心幫忙解題了!! 謝謝!!!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.119.120.211
文章代碼(AID): #1GJrM4Cs (GRE)
文章代碼(AID): #1GJrM4Cs (GRE)