Expected Value and Variance of Discrete Random Variables

An introduction to the concept of the expected value of a discrete random variable. I also look at the variance of a discrete random variable. The formulas are introduced, explained, and an example is worked through.

[screwgoogleaccounts]

You took 8 minutes to do what my Professor has done in 17 pages of nonsense notes. I would be failing without this haha 

[Hind-tj]

first video that actually explains the concepts instead of just applying the formulas, thank you so much

[parthsarthy]

I wish my professor in university could teach students like jb does.Understood it in 5 mins.thank you

[jbstatistics]

Thanks for the compliment! I've got lots of good stuff on this channel, and I hope you find it helpful.

[kaljamaha]

I am so glad that I found this channel. I have been struggling with my university's probability and statistic course

[kokokiki]

I've watched so many videos on expected values and variance and this was the first one I was able to really truly understand. Thank you so much for being so thorough!

[aditipatil]

You made it effortlessly easy to understand 😀
Thank you!!!

[roh_yinee]

My uni professor made this topic so confusing I got frustrated thinking I'm too dumb. But this vid explained it so well. Thank you Sir.

[quaemeany]

This is honestly better done than Khan Academy. You seem to know what you're going to say rather than winging it like he does in every single video. 

[amylabelle]

All of these videos are saving my life, you are amazing at what you do JB.

[Bitrey]

Sir thank you so much. No need for fancy university documents with so much theory and no examples, THIS is how you teach, so so clear.

[ojussinghal]

The clarity with which you explain things, it's fantastic.
Whenever I have a doubt, you clarify it in the very following sentence!

[jbstatistics]

Thanks! Other than 1 year in Georgia, I've lived in Ontario my whole life, and near Toronto for the last 20 or so. But in the last 6 months or so, 4 people have asked me about my accent in face to face conversations. So people are hearing something, but I don't know what it is. I have a tendency to use secondary pronunciations of words that are a little softer than the primary pronunciation. But maybe it's just the small town Northern Ontario Kenora boy showing through :)

[ExactusAtelier]

Here I am as a graphic designer watching a video about expected value yet found it way more entertaining than any business calculus course I took in college. Thank you 😂

[roseroast]

Thanx man... I'm from India... There will be my exams in 3 days and this question here was the only one from whole probability of our syllabus that I wasn't able to understand... Now u explained it in a really beautiful way...

[jbstatistics]

You are very welcome! I'm very glad you are finding my videos helpful. And thanks for the compliments!

[jbstatistics]

You're welcome Laura, I'm glad you like them!

[yummymummy]

Thank you, it is such a relief to figure this one out. I still have some hair left on my head!!

[Daniel-aaaaa]

I keep looking back at these videos, and there is no better channel than this one. One decade later and it's still high quality. Only downside is that stats and probability is such a broad topic and you're only one person, so coving all of it is impossible 😔

[amritsharmapoudel]

The way you focus on the important points with your voice is just awesome! Likes! You are the real MVP.