Question is
The marks obtained by 40 students of class IX in an examination are given below:
12, 8, 18, 8, 6, 16, 12, 5,
23, 2, 10, 20, 12, 9, 7, 6,
5, 3 , 5, 13, 21, 13,15, 20,
24, 1, 7, 16, 21, 13, 23, 18,
7, 3, 18, 17, 16, 16, 23, 12
Represent the data in the form of a frequency distribution using 15–20 (20 not included) as one of the class intervals.
