Given the following data:
[tex]7,2,37,32,27,22,16,11,6,1,36,31,25,20,15,10,5,24,24,24,9,9,14[/tex]
This represents the distance (in miles) traveled to the workplace by 23 employees of a certain hospital.
We need to represent this data using a frequency polygon, given that the initial class is 0.5, and a width of 9. The classes (and their midpoints) are:
[tex]\begin{gathered} \lbrack0.5,9.5\lbrack\rightarrow5 \\ \lbrack9.5,18.5\lbrack\rightarrow14 \\ \lbrack18.5,27.5\lbrack\rightarrow23 \\ \lbrack27.5,36.5\lbrack\rightarrow32 \end{gathered}[/tex]
Now, the frequencies are:
[tex]\begin{gathered} \text{Frequency of }\lbrack0.5,9.5\lbrack\colon7 \\ \text{Frequency of }\lbrack9.5,18.5\lbrack\colon5 \\ \text{Frequency of }\lbrack18.5,27.5\lbrack\colon7 \\ \text{Frequency of }\lbrack27.5,36.5\lbrack\colon4 \end{gathered}[/tex]
The frequency polygon is: