The graph and pie chart above depicts the average of students who learned for different amounts of time for exam and the pecentage score students retrieve based on hours studied.
Overall, It is obvious that the pupils who spending lots of their time to studying will achieve an aquivalent result suits the time avarage that they spent. Meanwhile for thus student who spending lack of time to learn might achieve low grade of test.
It can be seen from the information, 5% pupils that spending 0-25 hours to studying achieve a low score at 40, also 18% and 38% students who let them self prepare the exam at around 26-50 and 51-75 hours gain a standart grade at 60 and around 70.
Compared to the 30% pupils who are spending much of their time at 76 until 100 hours, succesfully achieve a highest score in around 90. However the most full of time that 9% 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.