#### Answer

The median is sometimes preferred because it is not sensitive for outliers and extreme values.
The mean is sometimes preferred because it is easy to calculate.

#### Work Step by Step

For example a median can be useful when talking about salaries in a company where the executives earn a lot more than the rest of the employees.
To get the median we first have to put the values in order, and that can take a lot of time. It is often easier to calculate the mean.