# 郭富城徐静蕾情爱视频

Questions tagged [probability-theory]

Use this tag only if your question is about the modern theoretical footing for probability, for example probability spaces, random variables, law of large numbers, and central limit theorems. Use [tag:probability] instead for specific problems and explicit computations. Use [tag:probability-distributions] for specific distribution functions, and consider [tag:stochastic-processes] when appropriate.

32,618 问题

0答案
6浏览

0答案
12浏览

### 博纳'L定理é维's theorem

Bochner's Theorem: If $\varphi : \mathbb{R}^d \to \mathbb{C}$ is positive definite, continuos and $\varphi(0)=1$ then it is the characteristic function of a probability measure, i.e. the Bochner's ...
0答案
26浏览

0答案
12浏览

1回答
26浏览

### Show that the median minimizes $E[|X-c|]$.

The following proof follows from the answer of @grand_chat. I slightly change the proof, and it gives the different result, and I am wondering why it does not work. 令$m$为$X$的中位数。 ...
1回答
54浏览

0答案
28浏览

0答案
22浏览

15 30 50 每页