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edit a typo #1346

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2 changes: 1 addition & 1 deletion chapter_preliminaries/probability.md
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Expand Up @@ -95,7 +95,7 @@ import numpy as np

在统计学中，我们把从概率分布中抽取样本的过程称为*抽样*（sampling）。
笼统来说，可以把*分布*（distribution）看作对事件的概率分配，
稍后我们将给出的更正式定义。
稍后我们将给出更正式的定义。
将概率分配给一些离散选择的分布称为*多项分布*（multinomial distribution）。

为了抽取一个样本，即掷骰子，我们只需传入一个概率向量。
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