Acme Aircon, a large building service company, is analysing its customer records.

Amongst the results are the following distributions:

Revenue (£1000)	Number of customers - January	Number of customers - July
Less than 5	27	22
5 and less than 10	38	39
10 and less than 15	40	69
15 and less than 20	22	41
20 and less than 30	13	20
30 and less than 40	4	5

The question requires to investigate statistical findings to assume that there is linear relationship between the variables which i have answered and there is a strong linear relationship between the two variables, however the question that I need help with if possible is the following

1. Present and explain your conclusions about revenues in the months