回复：i am just trying to help

来源: 于 2010-01-29 19:18:21 [旧帖] [给我悄悄话] 本文已被阅读：次

let Ld=Li dided.Hd= Huang dided.
P(L^Hd)=.3
P(Ld^H)=(1-.3)*.5=.35
P(L^H)=(1-.3)*(1-.5)=.35---P(L^Hd)=.3,P(Ld^H)=(1-.3)*.5=.35,P(L^H)=(1-.3)*(1-.5)=.35-----.........
So,P(L^Hd)=.3+.3*.35+.3*.35*.35+.3*.35*.35*.35+...=.3/(1-.35)=.4615
P(Ld^H)=1-.4615=.5385.Huang is better.