Order is Important
A permutation is an arrangement of objects or elements in a specific order. Sometimes it is the ordering of all the elements in a group. Often it is the order of choosing elements from a group. For example, most padlocks use three numbers between 0 and 99, but it is the order of the numbers that lets you open the lock.
There are 3 steps to find permutations:
- Figure out how many places there are to fill.
- Figure out how many objects can potentially go into each place.
You roll a 6-sided die and pull a card from a deck of 52 distinct cards. How many different pairs of outcomes are possible?
(Note: die is the singular of dice.)