A survey sort to establish the popularity of a presidential candidate. Four cities were selected and the responses recorded as follows: Nairobi Mombasa Kisumu Nakuru
Yes 45 55 60 50
No 35 45 35 45
No opinion 5 5 5 5

(a) What is the probability that the voters were in favor of the politician?
(b) What is the probability that the voters were in favor of the politician and were in Kisumu?
(c) What is the probability that a voter favored the politician given that she was from Kisumu?
(d) Given that a voter favored the politician, what is the possibility that he was from Nakuru?