Prepare a frequency distribution by inclusive method taking class interval of 7 from the following data:

28

17

15

22

29

21

23

27

18

12

7

2

9

4

1

8

3

10

5

20

16

12

8

4

33

27

21

15

3

36

27

18

9

2

4

6

32

31

29

18

14

13

15

11

9

7

1

5

37

32

28

26

24

20

19

25

19

20

6

9

 

 

 

 

 

 

 

 

 

 

 

Class Interval

Tally marks

Frequency

0 – 7

15

8 – 15

15

16 – 23

14

24 – 31

11

32 – 39

5

Total

 

60

 

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