Q14 of 35 Page 209

To draw a histogram, the class-boundaries are taken

class boundaries are always made on x-axis.

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14

Each of the area of each of the rectangle of a histogram is proportional to

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A frequency polygon is drawn by the frequency of the class and

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In case of drawing a histogram, the base of the rectangle of each class is

 14

A histogram is the graphical representation of a grouped data whose class-boundary and frequency are taken respectively.