How to Calculate Combinations Without and With Repetition

Miacademy & MiaPrep Learning Channel

This comprehensive math video introduces students to the concept of combinations, clearly distinguishing them from permutations through relatable examples. Starting with a scenario involving painting a room, the narrator demonstrates how the order of selection matters for permutations but becomes irrelevant when items are mixed or grouped together, defining a combination as a selection where order is not a factor. The video visually breaks down why there are fewer combinations than permutations for the same set of items and walks viewers through the logic of dividing out redundant orderings.