| 三维随机变量的变量替换定理及应用 |
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| 引用本文： | 刘德金. 三维随机变量的变量替换定理及应用[J]. 松辽学刊, 2013, 0(4): 87-89,92 |
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| 作者姓名： | 刘德金 |
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| 作者单位： | 德州学院数学系,山东德州253023 |
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| 基金项目： | 喀什师范学院课程建设项目（项目编号：KKAZ1204） |
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| 摘 要： | 给出了三维随机变量的变量替换定理以及相应的推论，这些结论提供了在不同变换下求三维连续型随机变量函数的概率密度的计算公式，实例应用表明，这些公式简便，灵活，实用．
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| 关 键 词： | 随机变量的替换变换 三维随机变量的函数 密度函数 |
Method for Solving Density of Three Dimensional Random Variable Functions |
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| Affiliation: | Abulikmu · abuduriyimu ( Department of Mathematics, Kashi Teachers College, Kashi 844000, China) |
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| Abstract: | In order to solve the density of three-dimensional random variable, the variable substitution theorem and its corollary are obtained. These conclusions were offered the solve formula of three dimensional continuous random variable density function formula in various Transformation. Application examples show that these formulas are simple, flexible and practical. |
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| Keywords: | variable transformation of random variable three-dimensional random variable function density function |
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