1. The problem asks about the features of a frequency distribution polygon and whether it has any other names. 2. A frequency distribution polygon is a graphical representation of the frequencies of different classes or intervals in a data set. 3. Features of a frequency distribution polygon include: - It is formed by joining the midpoints of the tops of the bars of a histogram with straight lines. - It shows the shape of the distribution clearly. - It helps in comparing different data sets. - It is useful for identifying modes, skewness, and spread of the data. 4. Another name for a frequency distribution polygon is a "frequency polygon". 5. It is important to note that the frequency polygon is a line graph that represents the frequency distribution, unlike the histogram which uses bars. 6. To construct a frequency polygon, plot points at the midpoints of each class interval at heights corresponding to their frequencies, then connect these points with straight lines. 7. The frequency polygon can be used to estimate the frequencies of classes not explicitly given by interpolating between points. 8. In summary, the frequency polygon is a useful tool in statistics for visualizing and analyzing frequency distributions.