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emre305

  • 2 years ago

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?

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  1. myininaya
    • 2 years ago
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    You should have a formula for P(A|B)

  2. myininaya
    • 2 years ago
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    \[P(A|B)=\frac{P( A and B)}{P(B)}\]

  3. emre305
    • 2 years ago
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    so how we going to apply this formula to my question?

  4. myininaya
    • 2 years ago
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    You are ask to find P(M'|N)

  5. myininaya
    • 2 years ago
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    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: \[P(M'|N)=\frac{P(M' and N)}{P(N)}=\frac{P(M')P(N|M')}{P(N)}\]

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