Question

The mark obtained by 40 students of a class in an examination are given below
3,20,13,1,21,13,3,23,16,13,18,12,5,12,5,24,9,2,7,10,16,8,16,17,8,23,24,6,23,15.
Present the data in the form of a frequency distribution using equal class size,one such being 10-15 (15 not included)

Answer 1

Answer:

Please check the above attachment

By the way there are only 30 numbers that you gave but you mentioned 40 students

Answer 2

Given the marks obtained for 40 students in a class examination

Class size         Frequency

0 – 5                         6

5 – 10                      10

10 – 15                      5

15 – 20                     6

20 – 25                      8

Total frequency         35

Therefore the frequency between ( 10 – 15 ) not included 15 is 5 and the total frequency of the marks obtained by the 40 students in examinations are 35.

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