Update 02-statistics-approach.md

2024-11-18 09:26:03 +08:00 · 2024-11-18 09:26:03 +08:00 · 0ddf5391d5
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-title: "统计学方法"
-sidebar_label: "统计学方法"
+title: "统计学算法"
+sidebar_label: "统计学算法"
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 - k-sigma<sup>[1]</sup>: 即 ***68–95–99.7 rule*** 。***k***值默认为 3，即序列均值的 3 倍标准差范围为边界，超过边界的是异常值。KSigma 要求数据整体上服从正态分布，如果一个点偏离均值 K 倍标准差，则该点被视为异常点.