{
  "id": "S265",
  "type": "单选题",
  "type_code": "single",
  "stem": "一般情况下身高服从正态分布，现随机抽取100名儿童，测得数值如下：平均值1.3米，中位数为1.25米，标准差0.13米，则该样本中68名儿童的身高应该是（ ）",
  "stem_text": "一般情况下身高服从正态分布，现随机抽取100名儿童，测得数值如下：平均值1.3米，中位数为1.25米，标准差0.13米，则该样本中68名儿童的身高应该是（ ）",
  "options": [
    {
      "key": "A",
      "text": "低于1.287米"
    },
    {
      "key": "B",
      "text": "高于1.43米"
    },
    {
      "key": "C",
      "text": "1.287米至1.313米之间"
    },
    {
      "key": "D",
      "text": "1.17米至 1.43米之间"
    }
  ],
  "options_text": [
    {
      "key": "A",
      "text": "低于1.287米"
    },
    {
      "key": "B",
      "text": "高于1.43米"
    },
    {
      "key": "C",
      "text": "1.287米至1.313米之间"
    },
    {
      "key": "D",
      "text": "1.17米至 1.43米之间"
    }
  ],
  "answer_keys": [
    "C"
  ],
  "answer_display": "C",
  "answer_texts": [
    "1.287米至1.313米之间"
  ],
  "sources": [
    {
      "edition": "第16届",
      "edition_num": 16,
      "no": 42,
      "uid": "16-042",
      "file": "第16届市调大赛本科组模拟题一(1).docx"
    }
  ],
  "source_display": "第16届 第42题",
  "source_count": 1,
  "images": [],
  "warnings": [],
  "conflict": null,
  "url": "/q/S265.html"
}