| | | ’s value range | Total range of values of |
| F (poor, poor) | −1.0 | [0.0,0.440) | [0,0.720) | F (poor, worse) | −1.0 | [0.220,0.720) | F (worse, poor) | −1.0 | [0.220,0.720) |
| F (poor, good) | 0.0 | (0.780,1.220) | [0.72,1.280] | F (worse, better) | 0.0 | (0.720,1.280] | F (better, worse) | 0.0 | (0.72,1.280] | F (good, poor) | 0.0 | (0.780,1.220) |
| F (better, good) | 1.0 | (1.280,1.780] | (1.28,2.0] | F (good, better) | 1.0 | (1.280,1.780] | F (good, good) | 1.0 | (1.560,2.0] |
|
|