{
  "aliases": [
    "unbiased-sample-variance",
    "corrected-sample-variance"
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  "body": "\n## Summary\n\nThe sample variance of a sample measures the spread of its values around the sample mean. With the divisor $n - 1$, it is an unbiased estimator of the variance of the population.\nThe node [[sample variance|0JN9P4A944]] gives the precise definition.\n",
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    "name": "Sample variance",
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  "msc": [
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  "name": "Sample variance",
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  "url": "https://math2.tamnd.com/wiki/sample-variance/",
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