{
  "id": "S220",
  "type": "单选题",
  "type_code": "single",
  "stem": "在回归模型[[IMG:15_image5.png]]中，ε反映的是（ ）。",
  "stem_text": "在回归模型[y = β₀ + β₁x + ε]中，ε反映的是（ ）。",
  "options": [
    {
      "key": "A",
      "text": "由于x的变化引起的y的线性变化部分"
    },
    {
      "key": "B",
      "text": "由于y的变化引起的x的线性变化部分"
    },
    {
      "key": "C",
      "text": "除x和y的线性关系之外的随机因素对y的影响"
    },
    {
      "key": "D",
      "text": "由于x和y的线性关系对y的影响"
    }
  ],
  "options_text": [
    {
      "key": "A",
      "text": "由于x的变化引起的y的线性变化部分"
    },
    {
      "key": "B",
      "text": "由于y的变化引起的x的线性变化部分"
    },
    {
      "key": "C",
      "text": "除x和y的线性关系之外的随机因素对y的影响"
    },
    {
      "key": "D",
      "text": "由于x和y的线性关系对y的影响"
    }
  ],
  "answer_keys": [
    "C"
  ],
  "answer_display": "C",
  "answer_texts": [
    "除x和y的线性关系之外的随机因素对y的影响"
  ],
  "sources": [
    {
      "edition": "第15届",
      "edition_num": 15,
      "no": 52,
      "uid": "15-052",
      "file": "第15届市调大赛本科组模拟题1.docx"
    }
  ],
  "source_display": "第15届 第52题",
  "source_count": 1,
  "images": [
    "15_image5.png"
  ],
  "warnings": [],
  "conflict": null,
  "url": "/q/S220.html"
}