An insurance company examines its pool of auto insurance customers and gathers the following information:
(i) all customers insure at least one car
(ii) 70% of the customers insure more than one car
(iii) 20% of the customers insure a sports car
(iv) of those customers who insure more than one car, 15% insure a sports car.
Calculate the pr. that a randomly selected customer insures exactly one car and that car is not a sports car.