A psychologist designs an 8-item pain survey asking athletes to identify their level of pain after a football injury. She is
considering either a 5-point scale or a 10-point scale. In how many different ways could a person answer each
survey?
Select all that apply.

Step-by-step explanation:

We know that the survey has 8 items, that means we can use the factorial number, because it's a simple permutation.

Using a factorial we have

where , which is the total number of items.

Therefore, there are 40,320 ways to answer the survey, or 8! ways.