Question

7
Construct a frequency table for the marks obtained by 30 students (out of 25 marks), using equal
class intervals
18, 11, 12, 7, 6, 15, 8, 9, 21, 15, 13, 14, 17, 22, 21,
23, 14, 8, 17. 12, 6, 15, 18, 22, 16, 23, 9, 21, 16, IL​

Answer 1

CLASS lNTERVAL Frequency

5-10. 7

10-15. 6

15-20. 9

20-25. 8

total. 30