how to draw a cumulative frequency column
 

Asked by shuddhatam | 30th Dec, 2015, 01:00: PM

Expert Answer:

Cumulative frequency is of two types:
1) Less than type
2) More than type
 
Below is the table for cumulative frequency (less than type)
 

Size of farm

(in acres)

No. of farms

      (f)

C.f

(less than type)

5-15

7

7

15-25

12

(7+12)=19

25-35

17

      (19+17)=36.

35-45

25

(36+25)=61

45-55

31

(61+31)=92

55-65

5

(92+5)=97

65-75

3

(97+3)=100

 
Below is the table for cumulative frequency (more than type)
 

Size of farm

(in acres)

No. of farms

      (f)

C.f

(less than type)

5-15

7

(93+7)=100

15-25

12

(81+12)=93

25-35

17

(64+17)=81

35-45

25

(39+25)=64

45-55

31

(8+31)=39

55-65

5

(3+5)=8

65-75

3

3

Size of farm

(in acres)

No. of farms

      (f)

C.f

(less than type)

5-15

7

7

15-25

12

(7+12)=19

25-35

17

      (19+17)=36®c.f.

35-45

Median class

25 ®f

(36+25)=61

 

45-55

31

(61+31)=92

55-65

5

(92+5)=97

65-75

3

(97+3)=100

Answered by Rashmi Khot | 31st Dec, 2015, 10:24: AM