Question

The marks obtained by 40 students of class IX in an examination are

given below:

18, 8, 12, 6, 8, 16, 12, 5, 23, 2, 16, 23, 2, 10, 20, 12, 9, 7, 6, 5, 3, 5, 13, 21,

13, 15, 20, 24, 1, 7, 21, 16, 13, 18, 23, 7, 3, 18, 17, 16.

Present the data in the form of a frequency distribution using the same

class size, one such class being 15 – 20 (where 20 is not included).​

Answer 1

Answer:

ANSWER

Given that

The marks obtained by 40 students of class VIII in an examination are given below

16,17,18,3,7,23,18,13,10,21,7,1,13,21,13,15,19,24,16,

3,23,5,12,18,8,12,6,8,16,5,3,5,0,7,9,12,20,10,2,23.

Divide the data into five groups

Prepare a grouped frequency table

Class group frequency

0 - 5 6

5 - 10 10

10 - 15 8

15 - 20 9

20 - 25 7

Total 40