Chapter 1.2, Problem 56E

To determine

To make: The Histogram and to determine whether there is any outliers or not.

Answer to Problem 56E

There are no outliers or extreme values.

Explanation of Solution

Given:

The Histogram of the drive time is

  

Formula used: $\text{Range=Minimum value-Maximum value}$

Calculation:

The shape of the distribution is seems to closer to the symmetric.

In particular it is left skewed distribution,

The center of the data is approximately 8.4 minutes.

Therefore,

Maximum value = $10.17$

Minimum value = $6.75$ Therefore,

  $\begin{array}{l}\text{Range=Minimum value-Maximum value}\\ \text{range=10}\text{.17-6}\text{.75}\\ \text{ = 3}\text{.42}\end{array}$

Therefore, there are no outliers or extreme values.