Chapter SR34, Problem 13P

Solution

The range of the given data.

  $43\text{pounds}$

Given:

The stem-and-leaf plot which shows the weights (in pounds) of dogs at an animal shelter,

  

Concept used:

The range of a data set is obtained by subtracting the least data point from the greatest data point.

Calculation:

In order to find the range of the given data set, subtract the smallest weight of the dog from the greatest weight of the dog.

Note that the least weight is 22 pounds and the greatest weight is 65 pounds, so the range of the data set is

  $\begin{array}{c}\text{Range}=65\text{pounds}-22\text{pounds}\\ \text{=}43\text{pounds}\end{array}$

Thus, the range of the given data is $43\text{pounds}$.