Decision-making is a frequent and important activity for managers. To make appropriate decisions, managers must collect, process, and analyze information accurately. Based on management science, probability theory, and statistics, this course supports the decision-making process through fundamental quantitative analysis methods applied in management, including optimization analysis, decision-making problems, ranking problems, and Markov analysis. The application scope of these quantitative analysis methods is diverse, spanning production, finance, and marketing. Additionally, the course introduces the use of software in analysis, particularly popular tools like Excel, to help students effectively apply these resources in practical situations.