Q. 125.0( 1 Vote )

Draw a frequency polygon for the following frequency distribution.

Answer :

We take the imagined classes (-9, 0) at the beginning and (61-70) at the end, each of the frequency 0.


Thus we have,



We plot the following points on the graph,


A (-4.5, 0)


B (5.5, 8)


C (15.5, 3)


D (25.5, 6)


E (35.5, 12)


F (45.5, 2)


G (55.5, 7)


H (65.5, 0)


Now we draw the line segment AB, BC, CD, DE, EF, FG, GH, to obtain the frequency polygon.



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