年龄(岁) | 类型一 | 类型二 | χ2 | df | p | ||
人数 | 百分比 | 人数 | 百分比 | ||||
7 | 1676 | 84.6% | 304 | 15.4% | 11.752 | 6 | 0.068 |
8 | 1208 | 85.1% | 212 | 14.9% | |||
9 | 1060 | 87.7% | 149 | 12.3% | |||
10 | 1009 | 84.9% | 180 | 15.1% | |||
11 | 917 | 84.5% | 168 | 15.5% | |||
12 | 974 | 84.0% | 186 | 16.0% | |||
13 | 259 | 81.2% | 60 | 18.8% |