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Advantages of frequency polygon:
1. It is easy to draw and simple to understand.
2. It is possible to plot two distributions at a time on same axes.
3. Comparison of two distributions can be made through frequency polygon.
4. It is possible to make it smooth.
Limitations of frequency polygon:
1. It is less precise.
2. It is not accurate in terms of area the frequency upon each interval.
Uses of frequency polygon:
1. When two or more distributions are to be compared the frequency polygon is used.
2. It represents the data in graphic form.
3. It provides knowledge of how the scores in one or more group are distributed.
Whether the scores are piled up at the lower or higher end of the distribution or are
evenly and regularly distributed throughout the scale.
Frequency Curve
