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CBSE Class 12 Informatics Practices Question 141 of 147

Plotting with Pyplot — Question 24

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Question 15

Out of above plotted histograms, which ones can be used for creating frequency polygons ? Can you draw frequency polygons from all the above histograms ?

Answer

Out of the above plotted histograms, none can be used for creating frequency polygons. We cannot draw frequency polygons from all the above histograms because to construct a frequency polygon, we need a step-type histogram. A frequency polygon is constructed by connecting the midpoints of the tops of the bars of a histogram. Step-type histograms provide a clear outline to draw these connections.