Construct a frequency polygon from the following data : Class-int… - Vidyadip

Question

Construct a frequency polygon from the following data :

Class-interval	1 - 5	6 - 10	11 - 15	16 - 20	21 - 25
Frequency	5	8	12	7	4

[Hint. Take the class-intervals as 0.5 - 5.5; 5.5 - 10.5; 10.5 - 15.5; 15.5 - 20.5, 20.5 - 25.5 and 25.5 - 30.5 with frequencies 5, 8, 12, 7, 4 and 0 respectively i.e. convert it to exclusive form.]

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