# What's 4P4?

##### 1 Answer

Mar 5, 2017

#### Explanation:

This appears to be a question about the permutation of 4 items within a population and all 4 being chosen (an example of this type of question is if you have 4 people sitting down in 4 chairs, how many different ways can they be arranged in those chairs).

The general formula for a permutation is:

and will work out this way: