"varianza" meaning in Italian

{
  "forms": [
    {
      "form": "varianze",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "varianza f (plural varianze)",
      "name": "it-noun"
    }
  ],
  "hyphenation": [
    "va‧riàn‧za"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "it",
          "name": "Statistics",
          "orig": "it:Statistics",
          "parents": [
            "Formal sciences",
            "Mathematics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "variance"
      ],
      "id": "en-varianza-it-noun-fAdmpM3Y",
      "links": [
        [
          "variance",
          "variance"
        ]
      ],
      "related": [
        {
          "word": "variante"
        },
        {
          "word": "variare"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/vaˈrjan.t͡sa/"
    },
    {
      "rhymes": "-antsa"
    }
  ],
  "word": "varianza"
}

{
  "forms": [
    {
      "form": "varianze",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "varianza f (plural varianze)",
      "name": "it-noun"
    }
  ],
  "hyphenation": [
    "va‧riàn‧za"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "related": [
    {
      "word": "variante"
    },
    {
      "word": "variare"
    }
  ],
  "senses": [
    {
      "categories": [
        "Italian 3-syllable words",
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian feminine nouns",
        "Italian lemmas",
        "Italian nouns",
        "Italian terms with IPA pronunciation",
        "Pages with 2 entries",
        "Pages with entries",
        "Rhymes:Italian/antsa",
        "Rhymes:Italian/antsa/3 syllables",
        "it:Statistics"
      ],
      "glosses": [
        "variance"
      ],
      "links": [
        [
          "variance",
          "variance"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/vaˈrjan.t͡sa/"
    },
    {
      "rhymes": "-antsa"
    }
  ],
  "word": "varianza"
}