Sample mean of a random variable
Intuition from some examples 給定一個隨機變量 X X X滿足某種分佈, 我們可以通過sample它得到其mean or variance. 假設sample了 N N N個點, 那sample mean X ‾ = 1 N ∑ n = 1 N X n \overline{X}=\frac{1}{N}\sum_{n=1}^N X_n X=N1n=1∑NXn 隨着
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相關文章
- 1. Entropy of a RV:Entropy of a binary random variable
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- 10. out-of-sample extension