Bethany's class took a field trip to an amusement park. During the day Bethany became separated from her class. It is now time to leave, and she needs to find the right bus to get on to go back to school. Bethany attends Washington Elementary. In the parking lot there are 3 buses from Washington Elementary, 5 buses from Adams Elementary, and 9 buses from Jefferson Elementary Unfortunately, all these buses look alike. If Bethany goes up to a bus at random, what is the probability that it will be the wrong bus?
