Final answer:
A flowchart would be the best TQM tool for determining why a student's course registration is never correct.
Step-by-step explanation:
The TQM (Total Quality Management) tool that would be best suited for determining why a student's course registration is never correct is the flowchart.
A flowchart is a visual representation of a process, which can help identify bottlenecks, errors, and inefficiencies. By mapping out the course registration process, a flowchart can highlight where the issues occur and why the registrations are incorrect.
For example, the flowchart can reveal if there are missing steps, miscommunications, or system errors that contribute to the incorrect registrations.