NO.PZ2020010301000014
问题如下:
Based on the probabilities in the diagram below, what is the value of the following?
Pr(B|A∩C)
选项:
A.15%
B.30%
C.10%
D.40%
解释:
Pr(B|A∩C) = Pr(B∩A∩C)/Pr(A∩C) = 10%/(15% + 10%) = 40%
如果是顺序变一下呢?p(a和c | B) 公式会怎样
NO.PZ2020010301000014 30% 10% 40% Pr(B|A∩= Pr(B∩A∩C)/Pr(A∩= 10%/(15% + 10%) = 40% 感觉讲义里没有讲过,经典题里也没有
NO.PZ2020010301000014 30% 10% 40% Pr(B|A∩= Pr(B∩A∩C)/Pr(A∩= 10%/(15% + 10%) = 40% 下次遇到相同的表示,是一个含义吗?可否一下这个表示的意思?考试也是这么考嘛?
NO.PZ2020010301000014 30% 10% 40% Pr(B|A∩= Pr(B∩A∩C)/Pr(A∩= 10%/(15% + 10%) = 40% 我觉得看图就是10%
30% 10% 40% Pr(B|A∩= Pr(B∩A∩C)/Pr(A∩= 10%/(15% + 10%) = 40%