In the list of 32 students from Table 5, only 20 students already approached the exam (actual Final grade in third column). Using the data mining approaches the models predicted all 32 students ‘‘Final grade’’, included 12 (37.5%) without actual ‘‘Final grade’’. With zero ‘‘Final grade’’ tolerance, the prediction was successful for 7 ‘‘Final grade’’ (21.8%). With +1 ‘‘Final grade’’ tolerance the prediction was successful for 11 ‘‘Final grade’’ (43.3%). The positive ‘‘Final grade’’ prediction was successful for 13 of 32 students (40.6%). And finally if 12 students (without actual ‘‘Final grade’’) were omitted from the data, the positive ‘‘Final grade’’ prediction was considered as successful for 13 of 20 students (65%), which could be evaluated as generally positive results.