Question

find P(N'|M')
P(M)=.07, P(N|M)=.2, P(N|M')=.3

Answer 1

The notation is fuzzy for me. Am I correct in saying that N' is the complement of N and M' is the complement of M?

Anyway, the probability of P(N'|M') = 1 - P(N|M'), so P(N'|M') = 1 - .3 = .7

Answer 2

ims sorry its actually,
find P(N'|M')
P(M)=.7, P(N|M)=.2, P(N|M')=.3 and it is the complement of m and n

Answer 3

Well, then it should be P(N'|M') = .7

P(N|M') is the probability of N occurring given that M' has occurred. The probability that P(N|M') would not occur is 1 - .3 = .7