Chapter 14.2, Problem 34E

To determine

To construct: The frequency polygon of the data.

Answer to Problem 34E

The frequency polygon is given below.

Explanation of Solution

Given:

The data is as:

  $\begin{array}{l}70,65,75,70,70,75,65,65,70,70,60,75,\\ 65,65,65,70,65,70,65,65,70,70,70,70,\\ 75,75,75,65,65,75,65,70,75,65,75,65,\\ 65,65,70,75,70,75,75,65,65,70,70,65,75\end{array}$

The frequency distribution table is as:

Data	Frequency
$60$	$1$
$65$	$20$
$70$	$16$
$75$	$13$

The frequency polygon is given as:

  

Therefore the frequency polygon is given above.