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Comparison Matrix

For 4 choices A, B, C, and D, a decision-maker has the following pair-wise comparison matrix and rankings of the confidence in their validity:
A B C D (1) A vs. D Highest
A 1 1/2 1/4 1/8 (2) B vs. C
B 1 3 5 (3) C vs. D
C 1 1/2 (4) A vs. C
D 1 (5) A vs. B
(6) B vs. D Lowest
Use the rankings as the basis to make the matrix totally consistent.