"standard normal distribution" meaning in English

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  "lang_code": "en",
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      "glosses": [
        "The normal distribution with a mean of zero and a variance of one."
      ],
      "id": "en-standard_normal_distribution-en-noun-EEpd3hju",
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          "statistics",
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        [
          "normal distribution",
          "normal distribution"
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          "mean",
          "mean"
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        [
          "variance",
          "variance"
        ]
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      "raw_glosses": [
        "(statistics) The normal distribution with a mean of zero and a variance of one."
      ],
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        "mathematics",
        "sciences",
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      "translations": [
        {
          "code": "cs",
          "lang": "Czech",
          "sense": "probability distribution",
          "tags": [
            "neuter"
          ],
          "word": "normované normální rozdělení"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "probability distribution",
          "word": "standardinormaalijakauma"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "probability distribution",
          "tags": [
            "feminine"
          ],
          "word": "distribución normal estándar"
        }
      ],
      "wikipedia": [
        "Normal distribution"
      ]
    }
  ],
  "word": "standard normal distribution"
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        "The normal distribution with a mean of zero and a variance of one."
      ],
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          "normal distribution",
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          "variance",
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        "(statistics) The normal distribution with a mean of zero and a variance of one."
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        "mathematics",
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        "Normal distribution"
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  "translations": [
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      "code": "cs",
      "lang": "Czech",
      "sense": "probability distribution",
      "tags": [
        "neuter"
      ],
      "word": "normované normální rozdělení"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "probability distribution",
      "word": "standardinormaalijakauma"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "probability distribution",
      "tags": [
        "feminine"
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      "word": "distribución normal estándar"
    }
  ],
  "word": "standard normal distribution"
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