On the afternoon of April 7, 2023, at 3:25 pm, the Mathematics-Statistics Academic Club (MSAC) had a monthly meeting with the report: "Data Editing (with Tidyverse, Magrittr)" presented by the student Nguyen Ngoc Ngan. The club also discussed some problems such as Lagrange multiplier method and its application in economics, Multiple integration and its application in measurement, Inequality and application in probability theory...