When constructing frequency polygon, must be calculated.

Cumulative frequency

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Average of frequency

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Median of frequency

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Class Marks

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Solution

The correct option is D Class Marks
A frequency polygon is the graphical representation of both discrete and continuous frequency distributions.

It is not necessary to construct a histogram first, and then the frequency polygon.

To construct the frequancy polygon:
First, the class marks need to be calculated, then they are taken on the X-axis and the corresponding frequency on the Y-axis
Suitable scales are to be taken before plotting the data.

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Similar questions

A frequency polygon is constructed by plotting the coordinates of ___ and their respective frequency.

30 - 40, 40 - 50, 50 - 60, . . .

65, 34, 74, 49, 52, 35, 71, 55, 61, 40, 56, 38, 52, 56, 52, 33, 60, 35, 49, 37, 53, 50, 44, 30, 62, 50, 47, 45, 47, 50, 63, 61, 54, 58, 47, 64, 37, 38, 44, 42, 47, 55, 70, 33, 75, 49, 47, 30, 60, 69

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