番外篇-为什么用标准差,不用绝对值的平均? episode artwork

EPISODE · Dec 1, 2019 · 13 MIN

番外篇-为什么用标准差,不用绝对值的平均?

from 大老李聊数学(全集)

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番外篇-为什么用标准差,不用绝对值的平均?

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