I have gotten the average grades of 25 students (They are both Anonymous). These 25 are my alternatives. Criteria from C1............CN are subjects and extracurricular activities. If in one Criteria, there is a range of grades from 100%-60%, how can I do a pairwise comparison of the alternatives in respect of my criteria. I dont know how to give a ranking of 1-9. If ever I suggest I get papers.