"fair coin" meaning in English

{
  "forms": [
    {
      "form": "fair coins",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fair coin (plural fair coins)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Probability theory",
          "orig": "en:Probability theory",
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      ],
      "glosses": [
        "A sequence of independent Bernoulli trials (a Bernoulli process) with probability 1/2 of success on each trial."
      ],
      "id": "en-fair_coin-en-noun-en:Q5429954",
      "links": [
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          "probability theory",
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        ],
        [
          "statistics",
          "statistics"
        ],
        [
          "sequence",
          "sequence"
        ],
        [
          "independent",
          "independent"
        ],
        [
          "Bernoulli process",
          "Bernoulli process"
        ],
        [
          "probability",
          "probability"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, probability theory, statistics) A sequence of independent Bernoulli trials (a Bernoulli process) with probability 1/2 of success on each trial."
      ],
      "senseid": [
        "en:Q5429954"
      ],
      "tags": [
        "idiomatic"
      ],
      "topics": [
        "mathematics",
        "probability-theory",
        "sciences",
        "statistics"
      ],
      "wikidata": [
        "Q5429954"
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    },
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          "name": "&lit not valid pagename",
          "parents": [],
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      ],
      "glosses": [
        "Used other than figuratively or idiomatically: an ideal coin, one so physically perfect that it has zero bias in its flipping."
      ],
      "id": "en-fair_coin-en-noun-en:literal",
      "links": [
        [
          "ideal",
          "ideal"
        ],
        [
          "coin",
          "coin"
        ]
      ],
      "related": [
        {
          "_dis1": "5 95",
          "word": "fair cake-cutting"
        },
        {
          "_dis1": "5 95",
          "word": "fair go"
        },
        {
          "_dis1": "5 95",
          "word": "no fair"
        },
        {
          "_dis1": "5 95",
          "word": "unfair"
        }
      ],
      "senseid": [
        "en:literal"
      ]
    }
  ],
  "word": "fair coin"
}

{
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    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
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  "forms": [
    {
      "form": "fair coins",
      "tags": [
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      ]
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      "expansion": "fair coin (plural fair coins)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "fair cake-cutting"
    },
    {
      "word": "fair go"
    },
    {
      "word": "no fair"
    },
    {
      "word": "unfair"
    }
  ],
  "senses": [
    {
      "categories": [
        "English idioms",
        "en:Probability theory",
        "en:Statistics"
      ],
      "glosses": [
        "A sequence of independent Bernoulli trials (a Bernoulli process) with probability 1/2 of success on each trial."
      ],
      "links": [
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        ],
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        ],
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        ],
        [
          "independent",
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        ],
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          "Bernoulli process"
        ],
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          "probability",
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        "(idiomatic, probability theory, statistics) A sequence of independent Bernoulli trials (a Bernoulli process) with probability 1/2 of success on each trial."
      ],
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        "en:Q5429954"
      ],
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        "idiomatic"
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        "Q5429954"
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    },
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      "glosses": [
        "Used other than figuratively or idiomatically: an ideal coin, one so physically perfect that it has zero bias in its flipping."
      ],
      "links": [
        [
          "ideal",
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        ],
        [
          "coin",
          "coin"
        ]
      ],
      "senseid": [
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  ],
  "word": "fair coin"
}