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patriot [66]
3 years ago
6

For two events, M and N, P(M)=0.7, P(N|M)=0.3, and P(M'|N')

Mathematics
1 answer:
dexar [7]3 years ago
5 0
Topic:C<span>onditional Probability

</span>For any two events A and B, where P(B) ≠ 0, P( A | B ) = P( A ∩ B ) / P( B ) = P( B | A) * P(A) / P(B)..i.e..{the probability of A given B is equal to the probability of A and B divided by the probability of B}

<span>For a set of events A1, A2, A3, ... , An,
</span>hence,
P(B) 
<span>= P(B and A1) + P(B and A2) + ... + P(B and An) </span>
= P(B | A1) * P(A1) + P(B | A2) * P(A2) + ... + P(B | An) * P(An)

P(M | N) 
<span>= P(N | M) * P(M) / P(N) </span>
<span>= P(N | M) * P(M) / (P(N | M) * P(M) + P(N | M') * (1 - P(M))) 
</span><span>Substitute Values.... you get ?

</span>
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