The graph and pie chart above depict the average number of students who learned for different amounts of time for the exam and the percentage score students retrieve based on hours studied.
Overall, it is obvious that the pupils who spend lots of their time studying will achieve a result equivalent to the time average that they spent. Meanwhile, for those students who spend a lack of time learning might achieve a low grade on the test.
It can be seen from the information that 5% of pupils who spend 0-25 hours studying achieve a low score at 40. Also, 18% and 38% of students who let themselves prepare for the exam at around 26-50 and 51-75 hours gain a standard grade of 60 and around 70.
Compared to the 30% of pupils who are spending much of their time at 76 until 100 hours, successfully achieve a highest score at around 90. However the most time that 9% of students spent at 101-125 hours is not giving the best result as 30% of the pupils have done, lower than 90 which is approximately 80.