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计量经济学理论/概率密度函数 (pdf)
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Econometric Theory
概率密度函数是一个描述连续随机变量概率的函数。连续随机变量是一个可以从 –∞ 到 ∞ 拥有无限多个值的变量,例如,身高、体重等等。连续正态随机变量 X 的概率可以用一个函数 f(x) 表示。
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书籍:计量经济学理论
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