The type of graph that will be suitable for representing only gold medals is the bar graph. The column where replication may have been used is in differentiating the tier of medals.
A bar graph is a type of graph that presents data with rectangular bars with lengths or heights that are proportional to the values represented
In this case, since there are different countries who took part in the Olympics tournament, the bar graph can be used to represent the gold medals. Also, based on the diagram given, replication could have been used in differentiating the tier of medals.
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