Chapter CSB, Problem 8.5E

To determine

Make a box-and −whisker plot for data.

Answer to Problem 8.5E

  

Explanation of Solution

Given information:

  $1,7,7,10,12,12,15,15,18,20,20,20,25,40,100$

Calculation:

Consider the data,

  $1,7,7,10,12,12,15,15,18,20,20,20,25,40,100$

The least and greatest number is $1and100$.

Now find the median,

There are $15$ element in the date so $8th$ element is the median that is,

  $meadian=15$

Now lower quartile range is median of lower half elements,

  $\begin{array}{l}1,7,7,10,12,12,15\\ LQ=10\end{array}$

Now upper quartile range is median of upper half elements,

  $\begin{array}{l}18,20,20,20,25,40,100\\ UQ=20\end{array}$

Now plot box-and −whisker plot for data,