Statistics 101: Multiple Linear Regression, Data Preparation 

Crystal clear explanation. I think I've finally found a non-boring statistics channel, with a wise instructor.

I am a Nigerian academic and a PhD student in Southeast Asia, I am marveled and fascinated by your unique pedagogical nuances as well as the serenity and calmness in your delivery. This is a rare quality of a TEACHER . You are gifted! I envy your students! You are the BEST! thumbs up

Whoa. Been struggling for days with the data for my MSc. in Global Health thesis. Your videos have broken the principles down to their basics, and built them up to re-form the whole picture. I can't thank you enough.

Your tutorials give me a sense of confidence that despite being from a commerce background i too can gain the expertise in Data Science stream with these ultra clear statistics concepts.

I'm currently enrolled in an MA in humanities, examining emergency and disaster management, essentially I'm the only person in my entire cohort doing a quantitative thesis (survey based examining if disaster preparedness is linked to various factors such as demographics and health and well being) and thus my program focuses on qualitative work. I've been teaching myself statistic. Thank you so much for these videos, they are literally a life saver.

My thesis proposal proposes a research that uses Multiple Regression. Thanks a lot!

I'm currently pursuing a professional certification in Data Science and while beginning work on my inaugural capstone project I've been, for a lack of better words, blindly cleaning my data. Watching this video opened my eyes to what my end goal of data wrangling should be. Thank you, Mr. Foltz, for the clarification and very likely saving me a ton of time.

Finally live. Enjoy!

Oh my gosh, thank you. Been trying to figure out what to do with my data from my thesis work on wetlands. No help from my adjunct adviser and I've had one stats class...in 1998. This particular video with the steps for the prep work is finally helping me visualize what I think might work. You are an excellent teacher. Would be so cool if you use some ecology, wildlife, or environmental data in your samples.

Thanks Brandon! Can tell you have the heart of a teacher and a great mind! Appreciate the way you present the material and the journey through it. Also appreciate the use of a consistent example. Best wishes.

Thanks for making these! Its amazing that I can learn more in a day of watching these than I can in half a semester from my prof!

Thank you Brandon for providing such an amazing community service. I am sure that this is helping thousands of people around the world who want to pursue their career in analytics or data science domain. I would really appreciate if you can add videos of SVM, Random Forest, Decision Trees, Naive Bayes, etc. And, one of the problems we tackle is undersampling and oversampling while dealing with the non-uniform distribution of target variable. I am sure it will help a lot of people especially me who want to clearly understand the concepts behind it in a very in-depth manner.

Thank you so much! These videos have greatly enhanced my grasp and understanding of regression. Having no prior stats experience before my current MA program, these tutorials have become inexorably linked to my econometrics textbook readings and class preparation.

Thank you very much for these well-made tutorials! A small suggestion though: I think the sea salt vs table salt example is not appropriate to explain multi-collinearity. Multi-collinearity refers to the case where one independent variable can be predicted from another. The existence of table salt doesn't seem to be predictable from the existence of sea salt. In fact, their existences can be made independent to each other, but of course their influences on the output (taste of the dish) are not independent.

Great video, very simple and explained with suitable example. You are a good teacher too..

Thank you so much about the materials you provide , it's really helpful you make a regression analysis as a peace of cake

Very clear explanation. Wish my teachers at uni were like this. Thanks so much for your videos.

Brandon, a very clear, simple, effective, really easy to understand teacher for difficult subjects.

THANK YOU. I type this in capS...THANK YOU. In a r statistics class, and in one weekend you helped me understand and also write the code to mirror your analysis. I understand SST, SSR, SSE, R, r squared, etc. Keep making the videos. For the first time, in all the gofundme's in the world, I contributed to yours. Can't thank you enough for making these videos. Note for those coming across this, the exact process Brandon is going through, my professor in my Phd program wrote the exact same correlation process. Each step is the same. However, Brandon is explaining it to the degree in which I understand it now after just a weekend. THANK YOU, THANK YOU, THANK YOU!!!!

Thank you for the videos. Learned a lot between simple linear regression videos to this one. Even the nitty gritty math of the coefficients makes sense!

I found your vidoe coz I'm doing an assignment involved with multiple variable regression. My lecturer and tutor couldn't explain it clearly, and didn't give sufficient instruction about how to do it. But your video is awesome. It saves me from struggling with my assignment, and what surprises me is that your example is highly similar with the scenario in my assignment. Thanks a lot.

Thank you Mr Foltz for posting these videos. They really helped me in my statistics class this fall. I went from being discouraged to earning a B in the class. Thank you! You truly have the gift of teaching.

I just discovered your channel. I wished I had done so earlier! I like that you explain at a reasonable pace and give a brief summary at the end of each step. You are a very skilled teacher!

Thanks for your work here! Clear, visual, and real examples. Again, thanks!

I found the Stat 101 presentations as "life saver" as Madeline stated. Thanks so much Foltz!

Thank you for making it simple to understand.

Brandon, great stuff! You have saved me from total mental rejection of this subject! You should be my professor!! I am at a University in San Antonio, Texas and have struggled up to this point (Simple Linear Regression) and you have turned it all around!! Thank you sooo much!!

Brandon. Excellent!... You've made quick and easy work of going back and renewing my understanding of Multivariate regression. THANKS!

You are the best. I have never seen an explanation as good as the one given in this video series. Amazing, I love your work, and I'm very thankful!

Brandon, I'm so grateful that people like you exist, you help so many students around the world, thank you!

Just want to say thanks for this! MSc research brain fog has lifted thanks to your clear explanation. I was able to find my way again

I'm watching this video 7 whole years after it was posted. Statistical analysis for my MSc data brought me here and I'm super glad I found your channel. I no longer have palpitations when thinking about multiple regression. Thank you very much!

This is truly helpful. Thank you and May God bless you

Looking forward to enjoying part3. Thanks so much for this thoughtful & well-organized work

Forecasting is the most difficult subject for me! I'm so glad I found your channel! I have a great professor but I like your teaching style! thanks so much!

This guy is saving my life - I was so lost before I found your videos! Thanks !

Nice video! You lectured very systematically and clearly and you were very careful for each term/jargon that could confuse us. You are really thoughtful and well organized. Thank you god that you made this video. Really appreciated!!!

This is a truly excellent series. I was trying to understand the ARMA models for prediction and I could not understand the terms. Now I have began seeing what the terms used there imply.

You are a life saver! Well presented and clearly explained. Thank you!

Best explanation i have heard so far on regression. Very few people have such a teaching talent

I invite teachers of the world to adopt your way of teaching! I cannot thank you enough!

Finally a tutorial with a real world example that is clearly explained, great work Brandon

Very helpful, clear explanations, really appreciated the way through you introduce topics, always come back and recall why this.

Great video! You just did in 20 minutes what my teacher couldn´t do in a week. I will be waiting for part 3. Thanks.

These lectures are excellent. They explain the subject FAR better than my text book does. Thank you so much for posting.

OMG, I wish I new this channel before! Im doing my MSc with lots of stats and you're saving my life hehehe amazing lectures, thank you for sharing your knowledge!

Your teaching is amazing. Thank you so much. There is nothing else out there that compares

Thank you so much!! You explain very clearly!

Brandon! Your da' man! Thank for sharing the knowledge and taking baby steps with us! My journey with you started with - like, then as I watched more on stats it went to subscribe then...the level went off the scale!!!! I'm beaming all the way to understanding this quantitative method which can be used as a research method! - Now, I feel empowered by your teaching! Appreciated and will pass on the links. :-) you have provided. Kate

You took so much time and hard work just to teach us .. I have no words to thank you ,on the occasion of Teachers Day in India i would like to thank you for all the hard work you have done for us..

Just stated with machine learning and found your videos. Really helpful content. Thanks Dude !!!

I m a big fan of yours. Here is one compliment that's suits you " You don't understand enough, if you can't explain it simply " . Your explanation helps to understand the depths of complexities. Or rather I should say you explain complex problems so simply which helps me getting better and dive more into data analysis. Keep doing good work. Thanks for everything you do.

The repetition in the concept is very helpful when you were explaining it.

I am so happy to find you, crystal as clear explanation thanks

Thank you for your help. Make more regression videos please! You're videos are the easiest to understand on youtube!

Thank you for your very structured video's! They really help me succesfully complete my master's thesis.

5 years ago ‘ s video and still outstanding 👍🏾 well done

These videos are perfect! The explanations are great and content is very well-organized. Thank you so much!!!!

You are the best professor in the whole world!!!!!!

This is really Helpful. Your videos have always cleared my concepts in a very less time. As a professional in analytics industry I find your work very useful whenever I need to refresh my concepts. Thanks *****. Can you also do a couple of videos on logistic regression?

Amazing videos. Very pedagogical. Your Voice is also perfect for this. Thank you!

Wow, a clear shot explanation, Thank you so much....!!!

Excellent video. Having the link to the playlists is very very useful, making it easier to review videos in sequence etc. You score extra for doing that :) - Thanks v much.

Very easy to understand. Thank you so much!

rly helping me understand the concepts of machine learning. Thanks

Fantastic!!...complex topics explained in simple manner....very helpful!

Always excited to watch brandon's tutorial!

could not agree more with Megan. This is excellent. thank you

Great Explanation!! Thank you Brandon.

This teacher is awesome. Thank you mr brandon.

This is great Brandon. Thanks!

Crystal clear ! Good work !

Thank you so much for your informative lecture. It was really big help for me.

Thank you for your effort. You are very good at Teaching. You make Statistics look easy. I have learned a lot from your videos.

fantastic ...complicated topics explained in a simple way

fantastic free video, thumbs up x 100!

Another outstanding video! Thank you Brandon!

Thanks Brandon, i am new to statistics and your videos help me a lot!

These videos are awesome! Thank you.

well explained! we need more content like this for statistics

extremely helpful brandon! thank you so much!

So clear. Tnx for doing these presentations.

Thank you for the videos. you made my master studies much simpler

♥️ simply awesome ,👌 best explaination ever i got

Great job! Thanks!

This is fantastic!!!! Thank you very much!

Such a wise instructor! OMG

Your series is so well made. Really good work.

Thank you a lot, all the best ❤️

You have made my life really easy...awesome explanation :)

Another helpful video. Thank you!

This is excellent explanation!! thank you very much posting it!

I really enjoy your slides. I appreciated your efforts.

only if I had a teacher as cool as you! thankyou for all the help

You are my life saver! Thanks

You are gifted at this!

amazing! I've learned a lot in 40 minutes more than weeks of my stat class

Thanks so much for your helpful videos!

superb work in explaining this!

This is amazing, please do advanced topics such as supervised learning,svm etc