Mathematics

Marks 3 4 5 6 7 8 Frequency 5 y – 1 y 9 4…

Marks345678
Frequency5y – 1y941

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