12. Calculation of Consistency Ratio
• Weight (Eigen Vector)
• max (Ax)
Weight
A x Ax x
1 0.5 3 0.30 0.90 0.30
0.60 1.60 =
0.60
2 1 4 = max
0.10 0.35 0.10
0.333 0.25 1.0
λmax=average{0.90/0.30, 1.60/0.6, 0.35/0.10}=3.06
12
13. Calculation of Consistency Ratio
• Consistency Index (CI) = (λmax-n)/(n-1)
• Consistency Ratio (CR) = CI / random
index
– Random Index Table
• CI=(λmax-n)/(n-1)=(3.06-3)/(3-1)= 0.03
• CR = CI / RI(n)
• = 0.03 / 0.58 = 0.05
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