One probabilit class of 30 students contains 15 that are ood, 10 that are fair, and 5 that are of poor quality. A second probability class, also of 30 students, contains 5 that are good, 10 that are fair, and 15 that are poor. you (the expert) are aware of these numbers, but you have no idea shich class is which. if you examine one students selected at random from each class and find that the student from class A is a fair student whereas the student from class B is a poor student, what is the probability that class A is the superior class?