The data below shows the number of students in class A and B having secured different marks.
|
Marks |
Students in class A |
Students in class B |
|
0 – 2 |
3 |
2 |
|
2 – 4 |
4 |
1 |
|
4 – 6 |
1 |
3 |
|
6 – 8 |
1 |
1 |
|
8 – 10 |
1 |
1 |
|
10 - 12 |
0 |
2 |
What is the combined mean of A and B?
1
3.75
2
3.5
3
4.7
4
4