"standard deviation" meaning in 英语

{
  "categories": [
    {
      "kind": "other",
      "name": "有1個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語可數名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_text": "由英國數學家卡爾·皮爾遜首次用於其著作《On the dissection of asymmetrical frequency curves》。",
  "forms": [
    {
      "form": "standard deviations",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "英语",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "标准偏差，標準差"
      ],
      "id": "zh-standard_deviation-en-noun-MlxUyt9Q"
    }
  ],
  "synonyms": [
    {
      "word": "standard error"
    },
    {
      "word": "sigma"
    }
  ],
  "word": "standard deviation"
}

{
  "categories": [
    "有1個詞條的頁面",
    "有詞條的頁面",
    "英語可數名詞",
    "英語名詞",
    "英語詞元"
  ],
  "etymology_text": "由英國數學家卡爾·皮爾遜首次用於其著作《On the dissection of asymmetrical frequency curves》。",
  "forms": [
    {
      "form": "standard deviations",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "英语",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "标准偏差，標準差"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "standard error"
    },
    {
      "word": "sigma"
    }
  ],
  "word": "standard deviation"
}