| 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
Correct Answer: Option C
Explanation
Total mark scored = 200
∴200 = 15 + 4y – 4 + 5y + 54 + 28 + 8
200 = 9y + 101
200 – 101 = 9y
99 = 9y
∴y = 11