{
  "aliases": [
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    "chi-squared"
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  "body": "\n## Summary\n\nThe chi-squared distribution with $k$ degrees of freedom is the law of a sum of the squares of $k$ independent standard normal random variables. It is central in tests and confidence intervals for variances.\nThe node [[chi-squared distribution|0RFMMBHFTV]] gives the precise definition.\n",
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