Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

习题11-1 #74

Open
Drdajie opened this issue Mar 11, 2022 · 4 comments
Open

习题11-1 #74

Drdajie opened this issue Mar 11, 2022 · 4 comments

Comments

@Drdajie
Copy link

Drdajie commented Mar 11, 2022

image.png
image.png
image.png
image.png
@JiaminL
Copy link

JiaminL commented Aug 29, 2022

我想问问，上述解答中的不等于都是怎么推导出来的？

@Drdajie
Copy link
Author

Drdajie commented Aug 29, 2022

解答

这边严格的证明方法我也不清楚，我记得好像西瓜书其中一个的证明就是这样简单说了下。
例如最后一个不等式，其实就看了下没办法再化简、变换成两个条件概率了。
很久没看这些了，后面可能也不做算法了。

@wenxueru
Copy link

wenxueru commented Oct 4, 2022

我想问问，上述解答中的不等于都是怎么推导出来的？

不等于是指一般条件下不等于，其实也存在等于的情况；只要能举出一种联合概率分布的反例使得其满足不等关系就算证明了。

@jdmyff
Copy link

jdmyff commented Dec 10, 2023

这里说2和1镜像，推不出来要哭了

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
4 participants
@Drdajie @JiaminL @wenxueru @jdmyff