恳请高手翻译论文摘要(英文)

来源：百度知道 编辑：UC知道 时间：2024/09/21 06:32:42
因为从小到大,英语最差.现在毕业了,原来的英文单词也忘了差不多了.希望高手出手相救,当然,在线翻译就不用啦.毕竟机器的脑袋不如人脑聪明啊!!!!!
摘 要:数学期望是随机变量的重要数字特征,它代表了随机变量总体的平均水平。在经济决策问题中有着广泛的应用，本文糸统分析了数学期望在各类经济决策中的实际应用，归纳总结了数学期望在经济决策中的主要应用类型，使之系统，完善。
关键词：数学期望； 经济问题；风险决策 ；决策树

Abstract: The mathematical expectation is a random variable number of important features, it represents the random variable overall average. In economic decision-making problems in a wide range of applications, the paper Shito integration of mathematical expectation in all types of economic decision-making in the practical application, summarized the mathematical expectation in economic decision-making in the main application types, so that the system, perfect.
Key words: mathematical expectation; economic issues; risk decision-making; decision tree