Answer/Step-by-step explanation:
a. From the bar graph, 1 student scored 9, 4 students scored 10.
Therefore, the no. of students who scored above 8 is:
b. From the graph, we have the following:
3 students scored 1
5 students scored 2
2 students score 4
6 students scored 5
12 students scored 8
1 student scored 9
4 students scored 10
Total no. of pupils in year 7 class = 3 + 5 + 2 + 6 + 12 + 1 + 4 = 33 students
c. It is assumed that all the students in Mr Hassan's year 7 class took the test.