Question

Draw an ogive by less than method for the following data:

No. of rooms:	1	2	3	4	5	6	7	8	9	10
No. of houses:	4	9	22	28	24	12	8	6	5	2

 

Answer 1

Firstly, we prepare the cumulative frequency table by less than method.

No. of rooms	No. of houses (f)	Cumulative frequency
1	4	4
2	9	13
3	22	35
4	28	63
5	24	87
6	12	99
7	8	107
8	6	113
9	5	118
10	2	120

Now, plot the less than ogive using the points (1, 4), (2, 13), (3, 35), (4, 63), (5, 87), (6, 99), (7, 107), (8, 113), (9, 118) and (10, 120).