The main goal of statistical data analysis, that is, data science, is to understand data. Once you understand it, you can also control it and manage it to meet your present and future goals. Including business goals.
Statistical data analysis allows us to find relationships, associations, trends and patterns in data. Things that you cannot see with your naked eyes. But the powerful tools of statistics can. From the classic and basic statistical methods like simple linear regression analysis to the new and advanced methods like support vector machines.