13) The managers of a corporation were surveyed to determine the background that leads to a successful manager. Each manager 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? Show your work. Manager Educational Background Rating H. S. Degree Some College College Degree Master's or Ph.D. Totals Good 2 1 24 12 39 Fair 5 14 49 19 87 Poor 3 4 8 19 34 Totals 10 19 81 50 160