[計量] 請教一題關於機率的題目
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!!!!
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