Home » Further Mathematics » Marks 5-7 8-10 11-13 14-16 17-19 20-22 No of students 4 7 26 41 14…

Marks 5-7 8-10 11-13 14-16 17-19 20-22 No of students 4 7 26 41 14…

Marks 5-7 8-10 11-13 14-16 17-19 20-22
No of students 4 7 26 41 14 8

The table above shows the distribution of marks of students in a class. Find the upper class boundary of the modal class.

  • A.
    13.5
  • B.
    16
  • C.
    16.5
  • D.
    22.5
Correct Answer: Option C
Explanation

The modal class = 14 – 16

The upper class boundary = (frac{16 + 17}{2} = frac{33}{2} = 16.5)