prepare a frequency distribution table by exclusive method from the marks of 30 students given below breakup take first class is 0 - 10 biggest
Answers
The marks obtained by 30 students in class in a test
10, 8,12,17,19,17,41,40,12,46,37,17,1,9,21,13,48,12,21,19,33,5,38,19,23,2,6,30,27
and the first class 0 - 10
The lowest observation = 1
The highest observation = 48
∴ we have
Marks Tally marks Number of students
0- 10 ∦1 6
10-20 ∦∦1 11
20- 30 1111 4
30-40 ∦ 5
40-50 1111 4
Total N = 30
Marks Number of students obtained the mark
10 1
12 1
5 1
70 1
65 1
24 1
39 1
46 1
40 3
60 3
74 1
26 1
67 1
17 1
54 1
15 1
49 1
50 1
33 1
27 1
11 1
04 1
19 1
72 1
20 1
Number of students 30
On the left side, I have arranged the marks in a random order which the students inside the class have got for the examination.
Totally 30 students, so I added all the marks obtained by all.
On the right side, I have listed the number of students who have secured which mark in the random order.
Hope this helps