The data that is present on a sheet of paper in the form of tables is sorted out and made into such a way that it can be plotted on a graph paper. This is going to be very much useful for the people who are reading the data. The graph so plotted is also represented in the form of bars so that it is clearer for the people to understand the statistics as such.
1. The frequency polygons not only help to make sure that the data is sorted out and represented, they are also going to make it easier for the people to compare and contrast all the results.