probability 101

来源: 于 2010-11-06 20:00:03 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

every probability 101 book has a 2-hunter-shooting-1-bird question, which is the same as your question.

you just need to calculation when both are wrong, which is 40% * 30%