年级 | 手机总分分类 | 合计 | c2 | p | |
非依赖 | 依赖 | ||||
初一 | 66 (93%) | 5 (7%) | 71 | 23.477 | 0.000 |
初二 | 40 (85.1%) | 7 (14.9%) | 47 | ||
初三 | 49 (87.5%) | 7 (12.5%) | 56 | ||
高一 | 45 (86.5%) | 7 (13.5%) | 52 | ||
高二 | 42 (64.6%) | 23 (35.4%) | 65 | ||
高三 | 54 (87.1%) | 8 (12.9%) | 62 | ||
合计 | 296 | 57 | 353 |
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