41. Prepare a tally marking chart for the marks scored by 70 students in an examination, by
taking the class interval of 5.
28
5
28
32
17
20
9
23
15
16
2
24
22
12
4
20
29
8
6
19
21
4
32
25
23
33
31
19
27
27
29
25
18
21
18
15
12
15
14
19
7
3
13
25
2
36
15
19
9
27
11
20
4
21
9
6
1
15
7
9
8
3
1
30
3
37
5
10
16
37
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