Nissan sold three models of cars in North America in 1999: Sentras, Maximas and Pathfinders. Of the vehicles sold, 50% were Sentras, 30% were Maximas and 20% were Pathfinders. In the same year 12% of the Sentras, 15% of the Maximas and 25% of the Pathfinders had a defect in the ignition system.
1. I own a 1999 Nissan. What is the probability that it has the defect?
2. My 1999 Nissan has the defect. What model do you think I own? Why?