The line graph illustrates the average price of every four weeks dealing with four different mobile companies in one European country from January to September in 2012 shown within euros.
Overall, Domo had the highest average cost from January to August, while Alpha showed the largest number of prices at the end of the period. Lex and Sim TX companies’s lines are fluctuated during the period.
Looking at the details, Domo in January accounted for 15 euros, and it increased to nearly 18 euros in March, but it decreased to around 16 euros in April. Then, Domo’s figure rose to 29 euros in May and stayed constant between May and June. Lastly, it increased to 25 euros and it was the highest average cost in July and it declined to around 23 euros. With regards to Lex company, it made up nearly 13 euros in January, while it was lower by 2 euros than Domo company, but it decreased to 10 euros in February and in March again rose to 13 euros. Apart from that, in May it accounted for 14 euros, in June declined to 13 euros, finally it went down to 18 euros.
Turning to Sim TX, the company contributed 8 euros in January, and increased to 11 euros in April, between April and May this figure stayed constant. In May it increased to June it was around 15 euros, after that it fell to 8 euros again in September. Alpha company accounted for 5 euros in January, and it rose to 9 euros in April, but this line declined to again around 5 euros in June. Lastly, from June down to August, and it showed 13 euros, and it overtook in September, it stood at 25 euros.
