The provided pie chart highlights the proportion of hours spent by students to study for a test along with a vertical bar graph which depicts the mean marks obtained by each student based on hours studied.
Overall, it is clear that maximum number of students studied 51-75 hours for an exam, while the highest marks are obtained by students who studied for 76-100 hours.
It is apparent that, almost 38% of students studied 51-75 hours for the test and the marks obtained by them are around 75 out of 100. Moreover, highest marks were obtained by pupils which spent 76-100 hours for the preparation, on an average 90, while the percentrum of tutee which studied for the same were 30%.
Moving further, 9% of students studied for 101-125 hours and they obtained 82 marks in the test, whereas the proportion of pupils which studied for 26-50 hours are double of it and the marks obtained by them are 60 out of 100.As far as students with study hours of 0-25 are concerned, they were 5% and obtained the least marks in the test,40 to be precise.