数学期望的基本概念及其应用
The Basic Concepts and Applications of Mathematic Expectation
DOI: 10.12677/aam.2025.149395, PDF,   
作者: 李豆豆, 关 丽*:北京工业大学数学统计学与力学学院,北京;石万林:华北电力大学数理学院,北京
关键词: 数学期望加权平均均值Mathematic Expectation Weighted Average Mean
摘要: 随机变量的数字特征刻画了随机变量某一方面的性质,在实际应用中更容易估算出来,有更加广泛的应用价值。本文主要介绍数学期望的基本概念和性质,并结合实例,让大家对数学期望这一数字特征有更深入的认识和理解。
Abstract: The numerical characteristics of a random variable describe specific aspects of its behavior, which facilitates estimation in practical applications and enhances its overall utility. This article primarily introduces the fundamental concepts and properties of mathematic expectation, and further deepens the reader’s understanding through illustrative examples.
文章引用:李豆豆, 关丽, 石万林. 数学期望的基本概念及其应用[J]. 应用数学进展, 2025, 14(9): 15-21. https://doi.org/10.12677/aam.2025.149395

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