Without Repetition  With Repetition  

Combinations pick k from n where k < n Order does not matter 


Permutations arrange all elements Order matters 


Variations arrange and pick k from n where k < n Order matters 


Without Repetition  With Repetition  

Combinations pick k from n where k < n Order does not matter 


Permutations arrange all elements Order matters 


Variations arrange and pick k from n where k < n Order matters 

