: A line graph where points represent the frequency of each class interval, plotted at the interval’s midpoint (class mark), and consecutive points are joined by straight lines. The polygon is closed at both ends by extending the lines to the midpoints of hypothetical intervals before the first and after the last, each with zero frequency.
The frequency polygon is a simple yet powerful graphical tool used in descriptive statistics to visualize the distribution of a continuous or discrete dataset. By connecting midpoints of class intervals with straight lines, it provides a smooth, polygonal shape that reveals patterns such as central tendency, dispersion, skewness, and modality. This paper explains how to construct a frequency polygon, contrasts it with histograms, discusses relative frequency polygons, and demonstrates its use in comparing multiple distributions. frekans poligonu
: A line graph where points represent the frequency of each class interval, plotted at the interval’s midpoint (class mark), and consecutive points are joined by straight lines. The polygon is closed at both ends by extending the lines to the midpoints of hypothetical intervals before the first and after the last, each with zero frequency.
The frequency polygon is a simple yet powerful graphical tool used in descriptive statistics to visualize the distribution of a continuous or discrete dataset. By connecting midpoints of class intervals with straight lines, it provides a smooth, polygonal shape that reveals patterns such as central tendency, dispersion, skewness, and modality. This paper explains how to construct a frequency polygon, contrasts it with histograms, discusses relative frequency polygons, and demonstrates its use in comparing multiple distributions.