Uploaded April 2020 | Updated September 2026, 1 week ago

---

NOTE: I have expanded, updated and revised this StatQuest. Please watch the new video on Expected values: youtu.be/KLs_7b7SKi4

Today we're going to talk a little more about Expected Values. This is one of those fundamental statistical concepts that underlies how statistics works. They can also be handy if you like games of chance.

For a complete index of all the StatQuest videos, check out:
statquest.org/video-index

If you'd like to support StatQuest, please consider...

Patreon: patreon.com/statquest
...or...
YouTube Membership: youtube.com/channel/UCtYLUTtgS3k1Fg4y5tAhLbw/join

...buying one of my books, a study guide, a t-shirt or hoodie, or a song from the StatQuest store...
statquest.org/statquest-store

...or just donating to StatQuest!
paypal.me/statquest

Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter:
twitter.com/joshuastarmer