You are a gifted teacher. I am so grateful for your presence on YouTube. I feel I've learned so much more from you than I have from my text. I cannot thank you enough!

Your explanations are so impressive. I just know I can't forget the concepts ever again

Your videos and teaching style are SOOOOO critical. Many of us struggle with the non-intuitive formulas and have given up. This stuff CANNOT be applied to real life if we cannot conceptualize what they really mean at their core and why they were derived in the first place. You are bridging that gap Justin, unlike so many others before you, and I am forever grateful. Thank you.

Love how you always try to build a strong intuitive understanding of formulae!

Here is the gist:  Covariance gives you one piece of information. It measures the direction of the two variables (positive or negative) positive (direct relationship) means that when one variable increases the other increases and negative means that when one variable increases the other decreases (inverse relationship), whereas, correlation gives you two pieces of information. It gives you the direction (positive or negative) and the strength of the relationship by being a number between (0 and 1). If two variables have a very strong relationship their coefficient might be .90 and if there is a weak relationship the coefficient might be .20

You're a wonderful teacher. Covariance and correlation was a mystery to me before. But you not only explain them in a PDF but also compare with a sample, which makes it extra clear to understand. Thank you so much !!!

Absolutely brilliant presentation! As a (high school/ secondary school) teacher of these topics, I find that you ALWAYS help me clarify my own explanations, making this difficult stuff much easier for students to grasp - I especially agree that overuse of formulae is dangerous: students who overuse formulae without a basic understanding of the processes risk failing to interpret results properly; this problem gets worse NOT better, the more more they do with statistics without such basic understanding! Well done, Justin, and many thanks for all your hard work!

This is a stupendous explanation. You've taught us array of concepts in a single video (especially the intuition behind df).

Hi Justin
I watched the entire descriptive statistics videos series. I must say all the videos are simply amazing in every imaginable way. I have zero background in statistics and i enjoyed all the videos tremendously.
thank you for taking the time to make them as it inspired me to dig deeper into the statistics field.
Hope this message will reach you and inspire you to keep making this type of great content.

Thanks!

Good work. I have never watched even one video on Youtube explaining that how statistical formulas are constructed. We just apply them but never learn and taught how to make them instead.

Time series please

I am from Asia , and I love you man , Your explanation is so great ‘ easy to understand

Can’t appreciate more about your beautiful works. I am studying machine learning, but struggling with some statistics concepts . Your videos really help me out !! You put these knowledge in a structural way, which is really impressive!!

There were so many complicated topics, such as degrees of freedom, that you explained with so much ease. It can't get more intuitive than this. Bravo sir!

Finally completing this series and it's been a wondeful journey so far. Such simple explanations of the concepts, the concepts which I thought that they are too tough to understand, you just made it so easy, Thanks

best stats teacher on youtube, thank you so much for your videos here

Using your content for my CFA exam, it's been super helpful for explaining the why behind everything and the relationships between the calculations rather than throwing formula after formula. Thank you so much!!!

great stat teacher on yt

Great way of illustrating this. Glad you included a weighted example as well