The student consistently and correctly uses correct mathematical notation, symbols, and terminology throughout their work. They appropriately define and explain key terms/variables when first introduced. The main concepts are described in the introduction, such as the correlation between the success of the goal and the footballer's position. Additional terms are also defined in detail in appropriate places. The student presents multiple forms of mathematical representation, such as formulae, tables, and diagrams, when necessary. They explain all calculations and describe each graph and table used. However, it is advised for the student to state the degree of accuracy for any rounded values and label the graphs, tables, and diagrams at the bottom.