CNS has 15 classes: (w1): Chemistry course 33 (Chemistry33), (w2): Mathematics33, (w3):Biology33, (w4): Chemistry34, (w5): Mathematics34, (w6): Biology34, (w7): Chemistry35, (w8):Mathematics35, (w9): Biology35, (w10): Chemistry36; (w11): Pharmaceutical Chemistry36,(w12): Mathematics36, (w13): Biology36, (w14): Applied Informatics36a, (w15): AppliedInformatics36b. When learning in CNS, each student is evaluated by the two types of mark thatare studying mark (X) and training mark (Y). Department administrators need to know the degreeof similarity about those attributes (X and Y). It will help them have many accordant adjustmentwhen running CNS or having decision that are related to supportive policies and scholarship forstudents. We use clustering based on SCD criterion to analyze student’s marks and provideresult to administrators. The data of 15 populations are presented in the Appendix. Firstly, wecompute the centroid of fifteen above classes and use them as the discrete elements needed toanalyze. Figure 8 shows the distribution of fifteen discrete elements according to two variables(X, Y).
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