According to the graph, it is Beniata's attendance in English Major at KTC. 

This diagram shows students who attend  and did not attend class everyday from week 1-7. It shows that few students miss the mark on participation which implies they doesn't come to school infrequently, and it's likewise shows the motivation behind why understudies didn't go to class

The graph is the summary of information about the students attendance in a long period of time.