What scenarios is the exam statistics function applicable to?

中文 Applicable to the following three types of scenarios: 1. Through score range statistics , it is possible to determine the general level of all students.         2. Through objective question analysis , it can be seen which questions have a high error rate and which knowledge points students generally have not mastered yet, and intensive tutoring is required in the courses.         3. Through grade ranking , it is possible to identify which students have excellent performance and which ones perform poorly. Targeted tutoring is needed, or they can be recommended to take certain courses.