Discrete Math II - 6.3.2 Combinations

In this video we will take a look at developing the concept of combinations and how they are related to permutations. Again, instead of giving you 100 examples on how to apply the formula for a combination, I spent some time developing how it is related to the formula for a permutation, which we learned in our last video.

Video Chapters:
Intro 0:00
Revising a Permutation 0:14
Relating a Permutation to a Combination 1:33
The Formula for Combinations 2:20
Using your TI-84 for Permutations and Combinations 4:13
Representations of Combinations and Two Identities 5:23
Powerball 8:30
Up Next 10:23

This playlist uses Discrete Mathematics and Its Applications, Rosen 8e

Power Point slide decks to accompany the videos can be found here:

The entire playlist can be found here:

[allphotoscloud]

part 3 of commenting on every video in this series that I watch because that is the only way i can pay off the debt of you putting in all this hard work to teach us. Thank you so much for your series you are a truly great person for putting out this sequenced content for all of us to flourish in your fields.

[tonyleung]

I want to express my gratitude for creating all these course videos. Currently, I am studying computational math, and we are tasked with learning Advanced Linear Algebra and Discrete Math within a tight 2-month timeframe. The extensive reading materials often prioritize precise definitions over facilitating understanding. Your videos have been instrumental in helping me grasp these concepts efficiently, saving me a significant amount of time. A heartfelt salute to you, the teacher!

[arinalikes]

You are an excellent lecturer. I am struggling so hard in my discrete class and you make so much more sense than my professor! Thank you for your sharing your lessons!

[Abstract.x]

Studying for my probability class and wanted to review combinations. Thank youu :)

[hjulxmaxn]

I have a question! How to determine that whether to use permutation and combination? I always get panic once I get questions