"marginal distribution" meaning in All languages combined

{
  "forms": [
    {
      "form": "marginal distributions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "marginal distribution (plural marginal distributions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Probability theory",
          "orig": "en:Probability theory",
          "parents": [
            "Mathematical analysis",
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The projection of a joint probability distribution onto one of its component random variables."
      ],
      "id": "en-marginal_distribution-en-noun-B6grAJA2",
      "links": [
        [
          "projection",
          "projection"
        ],
        [
          "joint probability",
          "joint probability"
        ],
        [
          "distribution",
          "distribution"
        ],
        [
          "random variable",
          "random variable"
        ]
      ],
      "wikipedia": [
        "marginal distribution"
      ]
    }
  ],
  "word": "marginal distribution"
}

{
  "forms": [
    {
      "form": "marginal distributions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "marginal distribution (plural marginal distributions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Probability theory"
      ],
      "glosses": [
        "The projection of a joint probability distribution onto one of its component random variables."
      ],
      "links": [
        [
          "projection",
          "projection"
        ],
        [
          "joint probability",
          "joint probability"
        ],
        [
          "distribution",
          "distribution"
        ],
        [
          "random variable",
          "random variable"
        ]
      ],
      "wikipedia": [
        "marginal distribution"
      ]
    }
  ],
  "word": "marginal distribution"
}