1. Develop a decision table and a decision tree for the course grading policy below. A student may receive a final course grade of A, B, C, D, or F. In deriving the student's final course grade, the instructor first determines an initial or tentative grade for the student, which is determined in the following manner for a student who has: Received a total of no lower than 90 presents on the first 3 assignments will receive an initial (tentative) grade of A for the course. Scored a total lower than 90 presents but no lower than 80 presents on the first 3 assignments will receive an initial (tentative) grade of B for the course. Received a total lower than 80 presents but no lower than 70 presents on the first 3 assignments will receive an initial (tentative) grade of C for the course. Scored a total lower than 70 presents but no lower than 60 presents on the first 3 assignments will receive an initial (tentative) grade of D for the course. A total lower than 60 presents on the first 3 assignments will receive an initial (tentative) grade of F for the course. Once the instructor has determined the initial (tentative) course grade for the student, the final course grade will be determined. The student's final course grade will be the same as his or her initial (tentative) course grade if no more than 3 class periods during the semester were missed. Otherwise, the student's final course grade will be one letter grade lower than his or her initial (tentative) course grade (for example, an A will become a B)