Table 8
Averge colours and dispersions for the cold CDOs, comparing those with smaller a (or q) and those with large values.
| Colour | N | Aver./σ | N | Aver./σ | t-Prob | f-Prob |
| a < 43.95 | a ≤ 43.95 | |||||
|
|
||||||
| B−V | 16 | 0.99 ± 0.16 | 18 | 1.03 ± 0.11 | 0.148 | 0.148 |
| B−R | 16 | 1.59 ± 0.26 | 17 | 1.69 ± 0.09 | 0.151 | 0.000 |
| B−I | 9 | 2.18 ± 0.37 | 14 | 2.27 ± 0.15 | 0.489 | 0.003 |
| V−R | 21 | 0.63 ± 0.10 | 21 | 0.65 ± 0.06 | 0.310 | 0.034 |
| V−I | 17 | 1.20 ± 0.16 | 20 | 1.24 ± 0.14 | 0.395 | 0.538 |
|
|
||||||
| q < 40.91 | q ≤ 40.91 | |||||
| B−V | 17 | 0.95 ± 0.17 | 17 | 1.07 ± 0.06 | 0.013 | 0.000 |
| B−R | 16 | 1.56 ± 0.25 | 17 | 1.72 ± 0.07 | 0.024 | 0.000 |
| B−I | 13 | 2.15 ± 0.30 | 10 | 2.34 ± 0.13 | 0.060 | 0.017 |
| V−R | 19 | 0.61 ± 0.08 | 23 | 0.67 ± 0.08 | 0.033 | 0.802 |
| V−I | 18 | 1.20 ± 0.18 | 19 | 1.25 ± 0.10 | 0.278 | 0.010 |
Notes. The a and q cut-off are set at the median value; N is the number of measurements; t-Prob and f-Prob are the probabilities that the two sub-samples are randomly extracted from the same distribution, evaluated with the t- and f-tests. The other colours show insignificant differences.
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