The table shows the marks scored by a group of students in a class test.



Marks
0
1
2
3
4
5


Frequency
1
4
9
8
5
3



(a)(i) Calculate the mean mark ; (ii) Find the median.
(b) If the information were to be represented in a pie chart, what would be the sectorial angle for the mark 2?



The table shows the marks scored by a group of students in a class test.



Marks
0
1
2
3
4
5


Frequency
1
4
9
8
5
3
