Statistics 101: The Binomial Distribution

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Күн бұрын

Statistics 101: The Binomial Distribution.
In this video, we learn the basics of the binomial distribution using the simple sales performance data of two salespersons. Given a fixed success rate and call volume, what is the probability of closing a certain number of sales per day? We use our knowledge of basic discrete probability distributions, the binomial experiment, and a second example involving quality control to explore this very important concept. Enjoy!
My playlist table of contents, Video Companion Guide PDF documents, and file downloads can be found on my website: www.bcfoltz.com

Пікірлер: 286

@angeepogosian934 4 жыл бұрын

The positivity that the video starts out with is so refreshing and very much needed. 💛

@ishamathstea9019 4 жыл бұрын

hye Angee. I have just posted a video on Binomial Distributions as well. I hope it will be helpful.

@arunkenta 3 жыл бұрын

I know. It makes me really motivated

@babydsmama 9 жыл бұрын

I'm typically a positive "I can do it" person, but statistics has become the class I wish I never had to take. The break through's are great when they come but I've fallen about a week and a half behind in understanding... almost 2 chapters and the break through's are not coming enough. It's like looking for something specific in a crowded dark room as someone else is trying to shove more stuff in the room. God help me!!! Your videos are helping a little though. :)

@motas92 4 жыл бұрын

Hey Brandon I great to be back you helped me a lot when I first did my certifications in Six sigma around 5 years ago and now again during my master studies, can't thank you enough for your great lessons hope you are thriving! Cheers

@ishamathstea9019 4 жыл бұрын

hye Juan, I have just posted a video on Binomial Distributions as well. I hope it will be helpful.

@aalbarrak 8 жыл бұрын

I'm MBA student, and I found this video is very helpful coz I'm using it as a base to understand Quantitative analysis. Thanks a lot

@rayez6565 9 жыл бұрын

You're a wonderful teacher! Thank you sir

@BrandonFoltz 11 жыл бұрын

Thank you for your comment. Each selection of 5 items is a discrete event. This is literally, 'walk over to the machine and take the next 5 items.' At 17:53 I point out that n=5 is the number of trials; each individual item selection is a binomial trial; success or failure. No matter how many times this 5-item selection is repeated, the probability of an outcome never changes, in the same way a coin flip never changes. Doing the selection once is the same as doing it 100 times.

@Renee11123 9 жыл бұрын

Thank you so much! Probability and Statistics is new to me and most of the time I could not "see" why we had to do each of the calculations. You made this so much easier for me to understand the why to the point I can finally do the calculations.

@zhenminliu 2 жыл бұрын

This video is very clearly presented. I am a statistician by training, learning the subject in university 50 years ago. Through Foltz's videos I am getting new understanding of what I learned half a century ago. A bit late but still lots of fun.

@georgesmith3022 4 жыл бұрын

Best explanation on youtube

@MrThadehj 9 жыл бұрын

Everyone can teach, but you are a born teacher. You are teaching as a V experienced professor who knows how to demystify problems that were first seen as cumbersome. Your skill is of no match.

@abat5991 4 жыл бұрын

I have watched many of your videos and found them extremely good. Your are a talented teacher who understands well his material and understands the needs of the followers. I have only one wish: using examples that belong more to real life situations. I am a physician and an epidemiologist, so I prefer some examples related to health. Thank you so much

@waynegreaves9070 9 жыл бұрын

Brandon, I very much enjoy your tutorials. I completed the Six Sigma training in which there is a great deal of probability and to be able to have your tutorials has been very much helpful. Thank you very much for taking the time to share your knowledge!! Please keep doing what you are doing!!

@michalkoenner 8 жыл бұрын

A truly great video! This was my very first time being exposed to the topic and everything was as crystal clear as it could be, huge thanks!

@kalebmckissick5056 3 жыл бұрын

Thank you! The positive energy at the end brought me to tears. I really needed to hear that.

@rangakrs 9 жыл бұрын

Excellent videos! For the sales problem (Joan vs. Margo) you make the argument of number of trials vs success rate. That is is true. In this example through the expected sales for Joan is .75*10 = 7.5 and for Margo it is .45*16 it is 7.2. Therefore we could conclude Joan is still a better salesperson. If you focus on the example of 6 it may move the reader to the conclusion Margo is a better sales person. If she did 17 calls then she goes ahead!

@mswastik 9 жыл бұрын

Love the way you derived Binomial equation without using any algebra. It is very intelligent and builds intuition for practical application of the concept.

@spencerprice1676 6 жыл бұрын

Thanks for the uplifting words of wisdom at the beginning of your video!

@ajithajayan5862 Жыл бұрын

The way you explained binomial distribution is priceless. Never knew the idea behind the equation before watching this video.

@Surya42930 11 жыл бұрын

U are blessed in ur profession...The clarity with which you take us through is just amazing. God Bless You Brandon !!!

@1Dispretty2me 8 жыл бұрын

such an encouraging person, he should b a mentor

@jazzychick8 10 жыл бұрын

My teacher cant seem to teach our class this over the course of a few days, but this man manages to do it in one sitting! Genius! I'm definitely subscribing! :D

@zatizsumkoolshyte 10 жыл бұрын

you are an amazing teacher

@arianabebe62 7 жыл бұрын

Thank you so much for taking the time and explaining the concepts. Def an inspirational video and way of teaching!

@aimeedumayne5341 7 жыл бұрын

Thank you for your videos. I will be watching every single one. Was getting confused with "success and failure" and your video on Binomial distribution really help me clear up the confusion.

@rachel_ellingson 7 жыл бұрын

minute 1:00 - the most inspirational math video ive ever seen!

@jdubrey1527 10 жыл бұрын

I cannot thank you enough for the thorough explanation! I'm struggling in Stats badly and this really helped clear the fog!!

@debrahendriks4098 10 жыл бұрын

Saw this on Google...sure be nice when this class I'd behind you. Xxmom

@lardyguts2 10 жыл бұрын

the person who gave this a thumbs down really dose not want to have my stats teacher. he will learn how good these videos are compared to most stats tutors

@MaribelLopez-zg2yr 8 жыл бұрын

Hi Brandon, you make understanding stats fun. Love the words of encouragement, I sense the sincerity. Please keep doing what you're doing, don't change a thing. Thanks!!

@Igameallday 7 жыл бұрын

This is a great video for teaching Binomial Distribution. I wish I found it sooner. I did appreciate your intro comment about feeling overwhelmed, because I was. THANK YOU. Just one tid bit of info, at the 31:27 point in your video I saw one typo in the probability formula. You typed in .55 for Margo in the (1-p)n-x part of the formula, instead of .45. The math you did was from the correct value. Just wanted to let you know in case anyone else got a little confused.

@bunkoti 2 жыл бұрын

This video provides a very good intuitive understanding of the reason behind the formula

@racerx1326 11 жыл бұрын

Brandon you explain so well and I love your positive and encouraging attitude. You're wonderful. Keep up the great work!!!!

@jadmerhi4462 8 жыл бұрын

Thank you for your effort and positivity!

@sterlingnk 7 жыл бұрын

Awesome! Thank you so much. People like you make the internet a better place. My exam score thanks you as well.

@CarlosVazquezNajera 9 жыл бұрын

Thank you very much, this was really illustrative.

@rate578 5 жыл бұрын

Brandon your my hero!

@Haneen241 11 жыл бұрын

This was really helpful! Thank you, I love the encouragement at the beginning and I would like if you put exercises for us to practice at the end, and if you do that please mention the answer because I'm having trouble finding questions that have answers, to practice on. :D

@alesi257 9 жыл бұрын

Thank you so much for this and other videos. One comment: Unlike what's stated at 32:00, I think Margo's higher prob. for 6 sales a day is NOT because she's making more calls. It's actually because Joan is more productive than Margo and so has a higher prob. of making 7 or 8 sales (in her 10 calls), while Margo has a higher prob. of making only 5 or 6 sales (in her 16 calls). In other words, because Joan is more productive, she will less likely make only 6 sales and more likely 7 or 8 than Margo.

@lonemaven 2 жыл бұрын

This is what I was thinking, too.

@bloodandroses06 7 жыл бұрын

Thank you for making this video. It has moved mountains for me.

@GwendolynDemby 9 жыл бұрын

Thank you so much for this explanation, I just had a light bulb moment for sure! You're AWESOME!!!!!!!!! I feel like I can pass my Statistics class with an A. Will keep you posted!

@TheSuper1887 10 жыл бұрын

This is amazing work you put out here. Can't point on anything I would change. Clear sound, great graphics and a nice tempo.

@agf6446 3 жыл бұрын

Thank you for making these videos and your kind words!

@trustbroken7115 3 жыл бұрын

Simple and easy! Thanks for doing this video👍

@Quijanos1 3 жыл бұрын

Great message and examples. Thank you.

@deborahfranza2925 3 жыл бұрын

Love love love! Thank you so much for creating this video!

@bernadetteabraham3261 8 жыл бұрын

Thank you for the positive encouragement....was thinking of quitting.....now I'm going to keep trying....

@skittlesmites7800 10 жыл бұрын

You are an exceptional mind my friend. You even helped me clear up some basic, elementary math concepts. Thank you so much for decomposing this problem the way you did. I swear somewhere from minute 20 to 25 I was saying, "Ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!"

@BrandonFoltz 10 жыл бұрын

Haha! Thank you! I am glad you found the video helpful. All the very best, B.

@farmarcos 10 жыл бұрын

I am beginning to understand discrete probability and binomial distribution. Thank you very much for this class.

@anrm6 Жыл бұрын

After 10 years of first studying this thing today is the day it clicked. You sir are a god

@BrandonFoltz Жыл бұрын

All the work you did before led you to that moment. Kudos to you for the perseverance to keep going!

@IvCastilla 10 жыл бұрын

... You are very good at teaching complex concepts.

@RavindraKumark 9 жыл бұрын

Thanks for all your help. Please keep rocking!!

@elnurshabanov1608 5 жыл бұрын

Excellent explanation !!!

@isac0014 9 жыл бұрын

Love your videos. So awesome. Been out of school for such a long time that these are amazing refresher courses.

@Shebly30 9 жыл бұрын

Great again. Your more fun than the book! Again, thank you and keep making videos.

@betlow9497 10 жыл бұрын

Thank you very much. Great teaching!! very clear steps and it helps me to understand better.

@MuhammadAamir-kr6tv 6 жыл бұрын

Excellent. A wonderful explanation. Keep up the good work sir. God Bless you.

@rur13223 10 жыл бұрын

Another very nicely done explanation! Thank you

@nandiniagarwal9040 3 жыл бұрын

Thanks for the brilliant explanation!

@harshadrathod8782 7 жыл бұрын

This is really counter intuitive !!. Thanks. This is an amazing explanation.

@kaidiminlu 2 жыл бұрын

thank you so so much for the free course, help me a looot with my career change!

@Azureandfabricmastery 4 жыл бұрын

Thank you Brandon. Very clear explanation makes it easy to understand. God bless.

@HareshPala 8 жыл бұрын

foltz..just amazing.................very very thanx.........you helping us..........god will help u,,,,,

@andreastuhafenisalom6596 8 жыл бұрын

Very simple and sweet.

@spirosfortis4394 6 жыл бұрын

All your videos are amazing. I learned statistics watching your videos. thank you much Brandon

@nilothpalbhattacharya8230 2 жыл бұрын

Excellent, nicely explained. Thank you

@henrytnh1 9 жыл бұрын

Great lesson. Many thanks.

@sandhyasrini_ 7 жыл бұрын

Thank you Brandon!!! I am learning this for my AI cognitive project and I hope this helps me a lot in my career!!!

@decipheringthematrix56 11 жыл бұрын

Thanks for the great material, I really like your encouraging comments at the beginning of your videos, they're very kind. Greetings from Mexico!

@snehashishpaul2740 Жыл бұрын

I love your motivation speech and the quotes before your lectures @ Brandon sir.

@EngrMateen 9 жыл бұрын

Brandon !!! That was really helpful.. You made it really simple !! Awesome !!

@BrandonFoltz 9 жыл бұрын

Mateen Ahmed Awesome! Glad you found it helpful. Keep on learning!

@shivsharma9153 Жыл бұрын

Hi Brandon my GURU, Thank you for making topics so simple and thorough. You are great at teaching. Thank you for putting so much efforts for us

@rezat.ashtiani1338 2 жыл бұрын

It couldn’t be more understandable, thanks a lot!

@onyn3555 9 жыл бұрын

Thank you so much, your videos really help me understand subject matters that initially look impossible to me

@oceanbeing 10 жыл бұрын

Excellent explanation.

@kings3521 11 жыл бұрын

I really appreciate your effort. Thanks

@annenglish9171 10 жыл бұрын

Thank you so very much! You explain things clear and simple, which is needed with a subject like statistics. Thanks too for the motivational tidbits at the beginning and end. :) Please keep making videos for confused students like myself!

@nuurahaji1676 7 жыл бұрын

Thank you so much for uploading this video

@adewolekayode6148 8 жыл бұрын

This is very educative. Thanks for this video

@AJ-et3vf 2 жыл бұрын

Great video sir! Thank you!

@kris12326 4 жыл бұрын

Very Helpful Brandon! Thank you for making!

@oldeubank 9 жыл бұрын

Thank you Brandon. A wonderful explanation.

@BrandonFoltz 9 жыл бұрын

oldeubank You very welcome! Thank you for watching.

@dernellwade2707 4 жыл бұрын

Awesome explanation!!!!!!!!!!!!

@amitdhiman6567 2 жыл бұрын

Thank you so much! Great, informative video. ❤️

@rafaelaprende 10 жыл бұрын

You are a good teacher. Congratulations!

@DhyaanCBharadwaj 10 жыл бұрын

GURU you are awesome...I tried a helll to learn but you made my life easy....

@pascaltorvic6246 7 жыл бұрын

Great teaching...

@OyinkansolaOmorodion 10 жыл бұрын

Thanks a lot for your time. God bless u

@danielnewcome9381 9 жыл бұрын

Brandon, that was awesome. It made the subject much clearer for me. Thanks!

@johnbarker2677 8 жыл бұрын

I found this presentation very useful.

@athanvi111 10 жыл бұрын

Excellent Video

@atanugg9372 7 жыл бұрын

Thank you, so intuitive learning

@jgarciajr6862 10 жыл бұрын

Thank you for this video. Very helpful in my Statistics course!

@wh33l6r 10 жыл бұрын

Lastly, as to the confusion about your labeling, at slide 18:53, the defect rate of .2 as "p" then saying that the assumption that the PROBABILITY of success is .2 is wrong is cleared up, for me at any rate, at slide 25:21 where you clarify the situation by labeling the first instance of .2 as the "error (garbled) defect rate" as opposed to the "probability" of .2. Maybe as earlier semantic distinction between "defect rate" vs. "probability" might have helped me (at any rate). That assumes, of course, that help is possible (forget probable!) ;-) Thanks again!

@ajitkhanal507 3 жыл бұрын

Enjoyed it!

@nkcubekomayephuts8834 7 жыл бұрын

That was very helpful, Thank you very much Sir

@raghavatreya7423 7 жыл бұрын

Really Helpfull !!

@19amin80 10 жыл бұрын

u r great teacher thank you for this video

@BrandonFoltz 10 жыл бұрын

Ha! Oh thank you so much. :) I must admit...I am an Android man...but hold Mr. Jobs in high regard. I was just blessed with awesome teachers my whole life. Thank you for watching and keep on learning; never stop. - B