The managers of a corporation were surveyed to determine the background that leads to a successful manager. Each manger was rated as being either a good,fair, or poor manager by his/her boss. The manager's educational background was also noted. The data appear below. Given that a manager is only a fair manager, what is the probability that this manager has no college background? Give your answer as a simplified fraction. H.S. Degree Some College College Degree Master's degree or Ph.D Totals Good 6 9 23 1 39 Fair 5 17 45 20 87 Poor 4 8 1 21 34 Totals 15 34 69 42 160