emre305 Group Title for two events, M and N , P(M)=0.4 P(N I M)=0.6, And p(N I M')=0.3 Find P( M' I N) =? anyone? 9 months ago 9 months ago

1. myininaya Group Title

You should have a formula for P(A|B)

2. myininaya Group Title

$P(A|B)=\frac{P( A and B)}{P(B)}$

3. emre305 Group Title

so how we going to apply this formula to my question?

4. myininaya Group Title

You are ask to find P(M'|N)

5. myininaya Group Title

Look we have: $P(M' |N)=\frac{P(M' and N)}{P(N)} \text{ and } P(N|M')=\frac{P(N and M')}{P(M')}$ We want to find the first, so we have: $P(M'|N)=\frac{P(M' and N)}{P(N)}=\frac{P(M')P(N|M')}{P(N)}$