Max has gone on a field trip with his class to the local museum. however, he has gotten lost. it is now time to leave, and he needs to find a bus that will take him back to his school, which is school a. in the parking lot, there are 4 buses going to school a, 4 buses going to school b, and 4 buses going to school c. unfortunately, all the buses look alike. if max gets on a bus at random, what is the probability that it will take him to the wrong school?