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Table 3 Scales of random index as investigated by Saaty [72]

From: Criteria prioritization for the sustainable development of second-generation bioethanol in Thailand using the Delphi-AHP technique

Matrix size (n) 1 2 3 4 4 6 7 8 9 10
Random index (RI) 0.00 0.00 0.58 0.9 1.12 1.24 1.32 1.41 1.46 1.49