What is a modal class interval, and how do I work it out?

The question asks me to draw a frequency polygon onto a graph (which I have done) but then it asks for the modal class interval which I do not know how to find, thank you

Answers
This question has been asked before - check out this link https://tutorhub.co...modal-class-interval
jonfromtutorhub
09 September 2012
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