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为什么随机变量的分布函数右连续，不左连续

2025-03-14 21:57:08

推荐回答（1个）

回答（1）：

为什么随机变量的分布函数fx右连续不左连续?
这个完全取决于如何定义分布函数.
如果定义
f(x)
=
p(x
<
x),我们看p(x
=
0)=1的情况,当x
<
0时,f(x)
=
0,但是当x
>=
0时,f(x)
=
1;
如果定义f(x)
=
p(x

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