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                ## 一、連續型隨機變量及其分布律 #### 連續型隨機變量的概念 #### 概率密度 #### 概率密度的性質 ## 二、常用的連續型隨機變量 #### 均勻分布 連續型隨機變量X具有概率密度: ```[math] f(x) = \begin{cases} \cfrac{1}{b-a} , a<x<b \\ 0, 其它 \end{cases} ``` #### 指數分布 ```[math] f(x) = \begin{cases} \lambda{e^{-\lambda{x}}} , x>0\\ 0 , x<0 \end{cases} ``` #### T分布 #### 正態分布 ```[math] f(x)=\cfrac{1}{\sqrt{2\pi}\delta}e^{-\cfrac{(x-u)^2}{2\delta^2}} ```
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