Question
Give steps for making frequency polygon.
✓
Answer
A frequency polygon can also be converted back into a histogram by drawing vertical lines from the bounds of the classes shown on the horizontal axis, and then connecting them with horizontal lines at the hieghts of the polygon at each mid-point. Frequency Polygon can be drawn in two ways:Method:
- Draw a suitable Histogram as explain in the previous section following all the basic principles.
- Get the mid points of the upper horizontal side of each rectangle.
- Join these mid points of the adjacent rectangles of the histogram by straight lines.
- Ends of the frequency polygon are to be extended to mid point of classes at both sides.
- Labelling should be properly done and scale of measurement should be clearly shown.
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