The two graphs show how many hours students spent preparing for an exam and the average score they got depending on how long they studied.
According to the pie chart,the biggest group of students studied between 51 to 75 hours. They make up 38% of the total. The second biggest group studied for 76 to 100 hours, which is 30%. 18% of students studied for 26 to 50 hours. Only 9% of students studied for 0 to 25 hours and just 5% spent the most times (101 to 125 hours.
The bar chart shows that the more hours students studied, the better marks they got, up to a point. Students who studied 76 to 100 hours got the highest average marks, a bit more than 90. Students in the 101 to 125 group got lower marks, about 85. The 51 to 75 hours group had an average of around 75. The lowest marks, under 50, were from the students who studied 0 to 25 hours.
