Construct a frequency polygon for the following distribution: Cla… - Vidyadip

Question

Construct a frequency polygon for the following distribution:

Class$-$intervals	$0-4$	$4 - 8$	$8 - 12$	$12 - 16$	$16 - 20$	$20 - 24$
Frequency	$4$	$7$	$10$	$15$	$11$	$6$

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Answer

The frequency polygon is shown in the following figure

Steps:$(i)$ Drawing a histogram for the given data.
$(ii)$ Marking the mid$-$point at the top of each rectangle of the histogram drawn.
$(iii)$ Also, marking mid$-$point of the immediately lower class$-$interval and mid$-$point of the immediately higher class$-$interval.
$(iv)$ Joining the consecutive mid$-$points marked by straight lines to obtain the required frequency polygon.

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