Statistics and probability
Permutation
An ordered arrangement of selected objects, so changing the order creates a different outcome.
Common notation P(n,r)=n!/(n−r)!
In one sentence
What does Permutation mean?
An ordered arrangement of selected objects, so changing the order creates a different outcome.
How it is written
P(n,r)=n!/(n−r)!
A compact example
Choosing president and vice-president from 5 people gives 5×4=20 permutations.
Other names and search terms
ordered arrangement.
Clear answers
Questions about Permutation
What does Permutation mean in mathematics?
An ordered arrangement of selected objects, so changing the order creates a different outcome.
How is Permutation written?
A common notation is P(n,r)=n!/(n−r)!.
What is an example of Permutation?
Choosing president and vice-president from 5 people gives 5×4=20 permutations.