Research Article
A Study on Decision-Making of the Indian Railways Reservation System during COVID-19
Table 4
Approximation sets and accuracy of approximation.
| | | Poor | Average | Good | Excellent |
| | Lower approximation | 1 | 4 | 14 | 3 | | Upper approximation | 1 | 6 | 18 | 5 | | Boundary | 0 | 2 | 4 | 2 | | Accuracy of approximation | 1 | 0.6667 | 0.7778 | 0.6000 |
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