回复：回复：回复：回复：回复：Answer to question 3

来源: 于 2010-01-29 17:52:46 [旧帖] [给我悄悄话] 本文已被阅读：次

Sorry,you are great, you talk about question 10, you're right.let me do it again,
P(rb)=.15*.8+.85*.2=.29
P(b/rb)=.12/.29=.4137931
I'm very sorry, thinking you were 北鹰.