Histograms, Frequency Polygons, and Time Series Graphs · Exercise 8

Construct a frequency polygon from the frequency distribution for the 50 highest ranked countries for depth of hunger.

$$\begin{array}{cc}\text{Depth of Hunger}& \text{Frequency}\\ \text{230–259}& \text{21}\\ \text{260–289}& \text{13}\\ \text{290–319}& \text{5}\\ \text{320–349}& \text{7}\\ \text{350–379}& \text{1}\\ \text{380–409}& \text{1}\\ \text{410–439}& \text{1}\end{array}$$

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Introductory Statistics 2e · §2.2 Histograms, Frequency Polygons, and Time Series Graphs · Exercise 8