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A frequency polygon in statistics is a graph that displays the distribution of a set of continuous data. It aims to visually represent a group of consistent data issuance, making it easier to interpret and analyse by plotting the frequency of each interval on the vertical axis and the midpoint of each interval on the horizontal axis. At its core, a Frequency Polygon is a graphical representation used to visualize the frequency distribution of quantitative data . Imagine taking your data, grouping it into intervals (known as class intervals), and then plotting the midpoint of each interval against its corresponding frequency. However, unlike the histogram, the frequency polygon can be easily utilized to compare multiple distributions on the same graph. In some cases, a histogram and a frequency polygon can be used simultaneously to get a more accurate picture of the distribution shape. How to Create a Frequency Polygon in Excel What is Frequency Polygon ? A frequency polygon is another way to show a frequency distribution on a graph. In addition to being an alternate for the histogram, the frequency polygon is also an outcome of the histogram. While comparing two or more frequency distributions, a frequency polygon is more suitable than using a histogram. Polygons can be constructed for both discrete and continuous series.
