Histograms, Frequency Polygons, and Time Series Graphs · Exercise 7

Construct a frequency polygon for the following.

(a) $$\begin{array}{cc}\text{Pulse Rates for Women}& \text{Frequency}\\ \text{60–69}& \text{12}\\ \text{70–79}& \text{14}\\ \text{80–89}& \text{11}\\ \text{90–99}& \text{1}\\ \text{100–109}& \text{1}\\ \text{110–119}& \text{0}\\ \text{120–129}& \text{1}\end{array}$$
(b) $$\begin{array}{cc}\text{Actual Speed in a 30-MPH Zone}& \text{Frequency}\\ \text{42–45}& \text{25}\\ \text{46–49}& \text{14}\\ \text{50–53}& \text{7}\\ \text{54–57}& \text{3}\\ \text{58–61}& \text{1}\end{array}$$
(c) $$\begin{array}{cc}\text{Tar (mg) in Nonfiltered Cigarettes}& \text{Frequency}\\ \text{10–13}& \text{1}\\ \text{14–17}& \text{0}\\ \text{18–21}& \text{15}\\ \text{22–25}& \text{7}\\ \text{26–29}& \text{2}\end{array}$$

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

OpenStax, Statistics · §2.2 Histograms, Frequency Polygons, and Time Series Graphs · Exercise 7