If A and B are two events such that P (A) = 1/2, P (B) = 3/4 and P (A n B) = 3/8,
find P (not A and not B).  Choose the correct choice from the following answers.
A) A)1/7
B) B)1/8
C) C)1/9
D) D)1/10
E) E)2/11
P(not A and not B) = 1 - (P(A) + P(B) - P(AB))   which you might find somewhere in your text.   Substituting in our probabilities we get:   P(not A and not B) = 1 - (1/2 + 3/4 - 3/8)   P(not A and not B) = 1 - (7/8)   P(not A and not B) = 1/8.   1/8
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If A and B are two events such that P (A) = 1/2, P (B) = 3/4 and P (A n B) = 3/8,
find P (not A and not B).