A commuter owns 2 cars. 1 compact and 1 standard model. About 3& of the time he uses the compact to travel to work. and about 1% of the time the larger car is used. When he uses the compact car, he usually gets home by 5:30 pm. about 75% of the time: if he uses the standard-sized car. he gets home by 5:30 pm. about 25% of the time [but he enjoys the air conditioner in the larger car]. a] If he gets home at 5:35 p.m.. what is the probability that he used the compact car? b} If he gels home at 5:30 p.m.. what is the probability that he used the standard model