Marks
3
4
5
6
7
8
Frequency
5
(y - 1)
y
9
4
1
The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, calculate the value of y
A
15
B
13
C
11
D
8
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Total mark scored = 200
∴200 = 15 + 4y - 4 + 5y + 54 + 28 + 8
200 = 9y + 101
200 - 101 = 9y
99 = 9y
∴y = 11
Source: Myschool Past Questions Archive (Record #9219)