Frequency Polygons in Statistics
What is Frequency Polygon?
Frequency Polygon is a way of representing continuous data in statistics and is similar to Histogram in statistics.
What Kind of Data is Appropriate for a Frequency Polygon?
Frequency Polygons are suitable for continuous data like height, weight, temperature, or time. They can, however, be used for discrete data that is classified into intervals, such as test scores or income bands.
Why Are Frequency Polygons Used?
Frequency polygon graphs are used to compare a group of data because they are more clear and legible. These graphs are also commonly used to represent the cumulative frequency distribution.
What are the Features of Frequency Polygons?
A frequency polygon graph is a closed dimensional diagram consisting of a line segment connecting the midpoints of the supplied class intervals. The graph can be made either with or without a histogram. The first point lies on the x-axis at y = 0, in the midst of the interval before the first class interval.
What is the Difference Between a Frequency Polygon and a Frequency Curve?
The main distinction between a frequency polygon and a frequency curve is that a frequency polygon is drawn by combining points with a straight line, but a frequency curve is drawn with a smooth hand.
Are Frequency Polygon and Histogram the Same?
No, it is not comparable, however it does have certain characteristics. The main distinction between both is that a histogram is a graphical representation of data made up of contiguous rectangles, whereas a frequency polygon is a curve made up of the midpoints of those rectangles.
Frequency Polygons in Statistics
Frequency Polygons in Statistics: A frequency polygon is a type of line graph where the frequencies of classes are plotted against their midpoints. This graphical representation closely resembles a histogram and is typically used for comparing data sets or showing cumulative frequency distributions. It uses a line graph to represent quantitative data.
Frequency polygons are one of the great methods to represent statistical data so that it can be read easily. In statistics, we deal with lots of data, and reading it quickly is necessary for solving statistical problems effectively.
Frequency polygons help us to achieve the same result. In this article, we will learn about frequency polygons, their formula, examples, and others in detail.
Table of Content
- What is a Frequency Polygon in Statistics?
- Frequency Polygon Graph
- Cumulative Frequency Polygon
- How to Draw Frequency Polygon?
- Histogram and Frequency Polygons
- Frequency Polygons Examples
- Frequency Polygons Are Used For – Applications