Acell phone manufacturing company wants to display the average sales of their new phone model for a particular month across six countries. which method of data representation would be ideal for this?

The ideal data representation to display average sales of product per month across six countries is BAR GRAPH, because it's easy to compare sets of data between different group at a glance. they are effective in presenting trends or changes over time and the relationship of the data between the x and y axes is easy to see.