Why is this number, the mode, important? It is important because it tells you about how much jerseys usually cost.
Let's look at what the mode of a set of data looks like on a graph! You can easily see that jersey 3 and jersey 7 are the same price and that their bars are the same height. This means that football jerseys will cost about $21.00. $20.90 is the mode, or price that appears the most often, on this graph.