求翻译：摘要： 本文介绍了概率的某些知识在实际问题中的应用，主要围绕古典概率、全概率公式、数学期望等有关知识，探讨概率知识在实际生活中的广泛应用，进一步揭示概率统计与实际生活的密切联系。是什么意思？

Abstract: This article describes the probability of certain knowledge in the practical problems in the application, the main focus of classical probability, total probability formula, the mathematical expectation and other relevant knowledge, to explore the probability of knowledge in a wide range o

正在翻译，请等待...

Abstract: This article introduced probability certain knowledge in the actual problem application, the main encompassment classical probability, the total probability formula, the mathematic expectation and so on the related knowledge, the discussion probability knowledge in the practical life wides

Summary describes a probability of some applied knowledge in practical problems, mainly classical probability, total probability formula, mathematical expectation relevant knowledge, explore probability theory in real life widely probability statistics of real life closely with further revealed.

Abstract: this paper describes the probabilities of certain knowledge in the practical application of, mainly around the classical probability, formula of total probability, mathematical expectation, and other relevant knowledge to explore the wide application of probabilistic knowledge in real life