Graphs of Cyber Monday's and Black Friday's sales.

Graph 1


1.The sales were increased year by year.
2. We can see that in some hours the sales were decreased for example at 11:20 am, 12:10 am and 13:00 am in 2009.
3. At the same time in 2011 the sales were increased.


Graph 2



1. We can see that the sales were better on Cyber Monday than on Black Friday.
2. After 9:15 am Cyber Monday's sales were going up and Black Friday's sales were going down.
3. People prefer on line shopping than to go to the store.