How to Calculate Permutations and Combinations

Yesterday’s post showed how to tell the difference between permutations and combinations. The day before, I posted about n! and what the heck to do with it. Now you’re ready to do some calculations.

Here’re the two formulas and how they compare:

And here are the numbers worked out from the video above:

Here’s an application of it using the cat example from the first video of yesterday’s post:

Post your questions and thoughts in the comments section.