Khan Academy Static

Combinations are similar to permutations. Combinations count how many ways we can pick a group of people or things from a larger group where order doesn't matter. For example, how many different groups of 3 people can a company with 10 employees send on a business trip?

4586_Handshaking_combinations.html

4587_Combination_example_9_card_hands.html

4584_Intro_to_combinations.html

4585_Combination_formula.html