The given line graph illustrates the data about study time and scores related to that study time. As we can see, in x-axis, there is a study time in days, while in y-axis, there is an exam scores from 0-100 point.
Overall, the line shows that the more days students study, the higher scores they get.
The lowest score among the scores was almost 55 points just in a day, while the highest scores were in 7-10 days, which is the point 100.
Students studying 2 or 3 days tend to have average scores: approximately 60, and 70 points. However the scores from duration 4 to 7 days are also enough to get good mark, which is greater than average: roughly 85 points in 4 days; 95 points in 5 days; and almost a hundred points in 6 days.