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The Scientific World Journal
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2015
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Article
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Tab 6
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Research Article
Integrated DEA Models and Grey System Theory to Evaluate Past-to-Future Performance: A Case of Indian Electricity Industry
Table 6
The Pearson correlation coefficient.
Correlation coefficient
Degree of correlation
>0.8
Very high
0.6–0.8
High
0.4–0.6
Medium
0.2–0.4
Low
<0.2
Very low