Answer:
Step-by-step explanation:
given that the probability a person living in the U.S. has a valid U.S. passport is 0.28. The probability a person living in the U.S. is not a U.S. citizen is 0.12
Assume a person living in the U.S. with a valid U.S. passport is mutually exclusive of the person being a U.S. citizen.
P(A) = Prob ( a person has a valid US passport) = 0.28
P(B) = Prob (person living is not a US citizen) = 0.12
A and B' are disjoint.
Prob a person living in the U.S. has a valid U.S. passport and is not a U.S. citizen= P(AB) = P(A) -P(AB')
= 0.28-0
=0.28
