Question
If the event A and B are mutually exclusive, P(B)=0•7,P(A Union B)=0•9 what is P(A),P(A Union B) complement,P(B complement)
Answers
oobleck
P(AUB) = P(A)+P(B)
P(x)' = 1 - P(x)
P(x)' = 1 - P(x)