The Student Room Group

P(A'nB') =?

P(A)=1/4 P(B)=1/2P(AnB)= 1/8
.P(A'nB')?
Reply 1
Have you tried using a diagram to display the data in an easier format?
use the following rules to get ur final answer

1.

P(A′∩B′)
= P(A∪B)′
= 1 - P(A∪B)
(de morgans law)


1.

P(A∪B) = P(A) + P(B) - P(A∩B)

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