Age | Number | least | Mean | highest | St | St/mean | Skewness | Kurtosis |
7.5 | 22 | 9.4 | 18.7 | 33.0 | 5.61 | 30% | 0.47 | 0.81 |
8.5 | 21 | 15.0 | 29.0 | 45.3 | 8.38 | 29% | 0.84 | 0.54 |
9.5 | 25 | 22.1 | 35.1 | 53.1 | 8.86 | 25% | 0.21 | 0.08 |
10.5 | 22 | 21.4 | 41.6 | 62.7 | 10.92 | 26% | 0.18 | −0.72 |
11.5 | 26 | 26.8 | 52.2 | 70.1 | 11.83 | 23% | −0.05 | 0.29 |
Total | 116 | 9.4 | 35.9 | 70.1 | 14.77 | 41% |
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