Question

construct a grouped frequency table with class interval 0-5 5-10 and so on for the following marks obtained in maths (out of 50) by a group of students in an examination: 0 5 6 7 10 12 14 15 20 22 25 26 27 8 11 17 3 6 9 17 19 21 22 29 31 35 37 40 42 45 49 4 15 16 20 (i) what is the range of the data (ii) which group contain maximum number of student (iii) determine the class size (iv) construct a cumulative frequency

Answer 1

Answer:

I hope you understand ☺️

Step-by-step explanation:

Given that marks obtained by a group of 30 students in an examination

0,5,7,10,12,15,20,22,25,27,8,11,17,3,6,9,17,19,21,29,31,35,37,40,42,45,49,4,50,16.

We can prepare frequency table with class - intervals (0-5) 5 not included

Class intervals Frequency

0 - 5 3

5 - 10 5

10 - 15 3

15 - 20 5

20 - 25 3

25 - 30 3

30 - 35 1

35 - 40 2

40 - 45 2

45 - 50 2

50 - 55 1

Total 30