作者s035280236 (安安)
看板Math
标题[机统] 一题机率观念
时间Wed Feb 5 19:24:04 2020
https://i.imgur.com/xshQ5e5.jpg
想请问这题是正确的吗 如果x所有点的机率皆是0
谢谢!
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1F：推 alan23273850: 如果是离散变数，答案就是 false 了吧 02/05 21:31
2F：→ alan23273850: 例如硬币正反面，结果非正即反 02/05 21:32
3F：→ urban01 : f 只有连续型才是题意那样 02/07 12:12
4F：推 JuanMaestrow: If X follows continuous distribution then P(X=x) 02/10 07:47
5F：→ JuanMaestrow: =0. if X is finite space like Bernoulli(p) then 02/10 07:47
6F：→ JuanMaestrow: P(X=1)=p and P(X=0)=1-p. Since the questions sa 02/10 07:47
7F：→ JuanMaestrow: ys X is any random variable, the answer is false 02/10 07:47
8F：→ JuanMaestrow: because that’s not always the case. 02/10 07:47