Overexplaining the binomial distribution

[@trees9363]

I was unreasonably happy to see that the blob finally made a shot at the end

[@PrimerBlobs]

:)

[@EEEEEEEE]

E‎‎‎‎‎‎‎‎‎‎

[@airmanon7213]

Same! :)

[@person8064]

:]

[@generaljoust829]

:3

[@Absolutemenace_]

This is literally our math subject rn. Thanks man.

[@NoTNoL]

Same

[@PrimerBlobs]

This one's for you

[@Absolutemenace_]

@@PrimerBlobs 🙏

[@duythuchoang5095]

​@@PrimerBlobslmao thanks, I actually learned the stuff in the video in January and it's so nice when I look at the formulas and understand them

[@EEEEEEEE]

‎‎‎‎‎‎‎‎‎‎‎‎‎E

[@xamwright]

The return of the king

[@williamdaniel2519]

Yeah

[@rytroniscool]

Biggest W of June so far

[@EEEEEEEE]

‎‎‎‎‎‎‎‎‎‎‎‎‎‎E‎‎‎‎‎‎‎‎‎‎‎‎‎‎

[@volodyadykun6490]

Every his video is return?

[@BoliVic96]

This has no reason to be as good as it is, thank you, I finally get it

[@LeastInsaneUtsu-PFan]

No matter the subject, I’ll watch these all the way through, even if I won’t learn it for years.

[@EEEEEEEE]

E‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

[@joshavery]

You're learning by watching! No need to wait for a formal class.

[@Patrick-Hartford]

same

[@angelus8521]

Primer is the only educational KZbinr I watch cause he makes it fun

[@spmagic9083]

I'd recommend a few: 1. 3Blue1Brown has similar math visualizations over a number of math topics. 2. Kurgesagt has really interesting animations over many topics, including science, climate change, space, and aliens. 3. Veritasium shows sciencey things in cool ways. 4. TedEd has short animations on a variety of topics, like science, mythology, fiction, history, and social studies. 5. MinuteEarth has fun, short animations about the Earth, nature, and related science topics. 6. MinutePhysics has short animations about physics. This is by no means an exhaustive list, but I watch these channels more than others. For shorter videos, try starting with TedEd, MinuteEarth, and MinutePhysics. The other channels have slightly longer, more in-depth videos.

[@infinitum-repertorium]

​@@spmagic9083thanks, i was about to write the same. It's so cool that this form of education connects us all even though we don't know each other.

[@Ennar]

What do you mean he makes it fun? Mathematics is fun. What he does is very clean visuals and is quite good at it. That's why I watch, even though I learned all of this many years ago.

[@EEEEEEEE]

E‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

[@suicidebxmber1234]

Not only does he EXPLAIN with absolute eloquence and clarity, but the care he puts into the animations is remarkable.

[@dragonfriend9364]

I personally miss the evolution/economic vids. I'll still watch these, but those are what brought me to the channel.

[@PrimerBlobs]

Me too, me too. There's an econ one cooking currently.

[@Twodoor1]

​let the man cook

[@jaideepshekhar4621]

Same! :(

[@dragonfriend9364]

@@PrimerBlobs thanks, I'm looking forward to it.

[@CrittingOut]

@@PrimerBlobs good to hear

[@RickachuCXVI]

I just love the presentation and explanations in these videos so much, it makes the entire lesson so much more engaging

[@EEEEEEEE]

E‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

[@junebug5180]

@@EEEEEEEE E

[@Lionbug]

The encouragements to pause and think through things are _vital_ to get people to actually _understand_ and not just watch the video and forget immediately. Very well done all around!

[@DuchessEvie]

The blob at the end is just footage of me trying to play basketball

[@alexanderwolf7514]

By now I've done 4 semesters of statistics classes but none of my professors was able to explain this concept as easily understandable as this video.

[@patrickwienhoft7987]

For binomials and the choose function there are really nice ways to build intuition, experiments to derive rules like in this video. However, in combinatorics you often care about slightly more complex things, where you have more classes than yes/no and dependencies between objects. For example, for a given graph, how many ways are there to label the nodes such that the graphs are isomorphic? When I learned this and taught it to other students I always had the feeling that this was one of the things for which you need a good understanding of the problem to solve it as there is no go-to formula or procedure to solve those. The only way that seemed to work is to solve different instances over until it clicks tl;dr: I found teaching combinatorics really hard.

[@anthonynorman7545]

​@@ensiehsafary7633also, the time/resources are no where equal to what a professor has.

[@47Mortuus]

Because you're expected to explain it to yourself, using different sources. THAT IS THE VERY ESSENCE OF UNIVERSITY

[@anthonynorman7545]

@@47Mortuus that's not how math classes tend to go. It's not like it was a research paper topic.

[@47Mortuus]

@@anthonynorman7545 stay ignorant :)

[@huhneat1076]

Can black blob with sunglasses become a recurring character? I think his character arc involving missing all the shots was very interesting

[@ChrisPhelior]

Chance of your team's Yasuo actually being good: infinitesimal Great video as always

[@doomse150]

That LoL reference came completely out of nowhere.

[@xavierburval4128]

Yeah I was way too surprised by that lol

[@TheAlexN1305]

Yeah, Yasuo teammate is the last blob in the video.

[@doomse150]

@@TheAlexN1305 Nah, don't be mean to the blob

[@jiyuandong8964]

i clicked on this video from the recommended sidebar while watching a league video so this actually was extremely fitting hahaha

[@pnku]

"your team's yasuo actually being good" is a reference i didn't expect at all, love your videos, was super excited to see this video in my sub box

[@APaleDot]

This isn't over-explained at all. This is the kind of explanation I've been looking for for so long!

[@kelkin2576]

15:12 I cheered so loud congrats buddy you did it

[@jamiedytham5276]

The only educational channel I'll watch when I already understand the subject

[@EEEEEEEE]

E

[@intercakefederation]

@@EEEEEEEEF

[@Emmet0223]

Same. Learned this beginning of last year but it is so much more engaging

[@BambinaSaldana]

​@@EEEEEEEE F

[@_________________404]

41%

[@Zmit]

Oh how I have missed the blobs engaging in simulations. So nice to see a new video. As always a pure delight to be able to learn and be entertained at the same time. All education should be this way.

[@frootjupes]

I wish I'd had this when covering counting problems! Your explanations and visuals are so much easier to comprehend than the lectures I read.

[@justinlindfors8512]

He should be the next channel to be featured in schools!

[@_chishika_]

one day in the future, this is gonna be played in a classroom for a maths class, and your gonna make a lot of people laugh and understand this a much better and get their foot into the doors of stats and further stats. amazing vid

[@ImThylacine]

This is a wonderfully succinct and comprehensive explanation of this topic that actually covers the reasons *why* the formula was constructed the way that is, not just how to use it. My math-teacher mom and I approve. I love the rest of your bio, econ, and math stuff, too. Here’s hoping the algorithm feeds this to more people!

[@Jaynat_SF]

4:28 I love the enthusiasm of the blob on the left who keeps on trying to score.

[@EEEEEEEE]

‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎E

[@littlevirus3562]

@@EEEEEEEE mate, a E has escaped your cage

[@ASocialistTransGirl]

@@EEEEEEEE bro is spamming E on all videos

[@trimonmusic]

I hadn't noticed this, thanks!

[@UserStillLoading]

its a good *year* when Primer uploads

[@PrimerBlobs]

hey

[@MMHUCREWMARSXD]

@@PrimerBlobshey

[@Misstborn]

As someone who just took stat, this was a really nice reminder of the logic behind everything and made me actually think about math for the first time in a few weeks. Fantastic video!

[@_________________404]

41%

[@nataliabasile752]

I can not believe it. I love your videos so much. I actually discovered your channel this morning. When I entered it and saw your last video was from ten months ago I thought you wouldn't be doing more videos. So the fact that on the same day I found you, you put a video makes me so happy. Keep it up, the blobs are the best

[@HarryHughAndYou]

I love your videos, every time you release one it’s like everything else freezes and I half to watch your video. Keep up the good work

[@thekeyboardwarrior1018]

I'm abot

[@Bambutcher2]

I'm so glad you did this video cos just the other day I was cracking my head on a similar problem and couldn't make out how binomial coefficient work on my own, thanks a lot for making it crystal clear. Great job, as always!

[@VexWythe]

my immediate thought when watching this, given the free-throw example from basketball, is calculating the odds of any given baseball pitcher throwing a perfect game (a game where not a single opposing batter gets on base over all nine innings) based on their WHIP statistic (walks and hits per inning pitched)! very cool video, as always :)

[@formerunsecretarygeneralba9536]

2:51 I did it, after spending 2 hours just staring at the ceiling because I wanna test my self by solving the problem in my head for 3 trials and the original question for 7/10 trials. My head hurts but I was finally able to see the pattern. I haven’t check the answer but I’m sure it is correct. for 3 people it is (To limit redundancy) 60=60% 40=40% 100%= 3C3 (60^3) + 3C2 (60^2*40^1) + 3C1(60^1*40^0) +3C0 (40^3) = 21.6% + 43.2% +28.8+6.4% 21.6= 3 success 43.2= 2 success 28.8= 1 success 6.4= 0 success Ok I don't if this is an already existing formula, I just came up with it. I don't know how to explain it very well. Let me just explain how it works. So 100% is like the max and for each trial you take, the more possibilities you have to divide up that 100%. Lets take 1 term from that example 3C3 (60^3) 3C3 (nCr) is what are the chances you shoot it 3 times (n) and score 3 times (r). Again idk why, I just know the formula for nCr and how it works. The 60^3 is the success rate. Since the success rate is 60% and there are 3 trials we take 60% and multiply it 3 times (raised to the 3rd power). You can do it in opposite, like have it mean shoot 3 times, fail 3 times then you need to change to 40^3. And then each term is how many grouped possibilities there are. 3 score, 2 score, 1 score, 0 score. It is always 1+n where n is the number of trials. If you add up all the nCr it will give you all the possibilities which is 2^n (for 3 trials 2^3=8) and how they are divided. For example (trial 1 - 6 division of possibilities not taking into account success rate) 1,1 =2 1,2,1 =4 1,3,3,1 =8 1,4,6,4,1 =16 1,5,10,10,5 =32 1,5,15,20,15,5,1 =64 I just find it interesting to get the next pattern you just need to add the numbers together but leave 1 there. Like 1+1=2 (1,2,1). 1+2=3, 2+1=3 (1,3,3,1). So after knowing that we can find what is the success rate of someone getting 7/10 if their success rate for 1 trial is 60% (only 7/10 no lower or higher because I forgot the exact question) We get 10C7 (60^7*40^3) we get ~ 21.5% Note: remember to power up the /100 as well. And multiply back to 100 if you want it to be in % form. At least 7 10C7 (60^7*40^3) + 10C8 (60^8*40^2) + 10C9 (60^9*40^1) + 10C10 (60^10*40^0) I got 38.2281%

[@marcboss]

I have been waiting for more videos, thanks for posting!

[@ethanpetersen810]

The blobs are adorable! Definitely going to ask for a plush or two this Christmas And seeing that this channel doesn’t overload one with videos, I subscribed pretty dang fast.

[@bogdanbusui5249]

On Friday I just had my Uni Probability exam and part of what we learned is exactly this. Awesome video and explanations, as always actually!!

[@PrometheusMMIV]

I love these videos. You have a great way of explaining things in a very intuitive way. I especially liked the demonstrations for calculating the binomial coefficient. Showing that the Nth blob added to the list can be inserted in N different positions really helps solidify why ordering is calculated using factorials*. And then using that to remove the duplicates from each group made a lot more sense than just trying to memorize the formula. * The way I usually think about ordering is if I have N items, then the first one in the list could be any of the N items, then the second could be any of the remaining N-1 items, then N-2, and so on until the last one.

[@batmanthedarkestknight]

You can’t imagine how happy I was to see you coming back! Your videos are so good! Keep going! ❤

[@viliuskripas4425]

I love these blobs! And the topics in your videos are covered in such an easy-to-follow fashion. Thank you so much for making them!

[@matchanik]

No puedo explicar cuanto hubiera querido tener este tipo de explicación en la época de estudiante. Excelente!

[@Meymoi]

Oh wow I was just looking at your channel and wondering when you would post next, I'm glad to be able to watch a new video of yours, they're always great!

[@LordHakkera]

Absolutely love your content. Almost yelled out "BLOB GUY HAS A NEW VIDEO" when I saw this in my feed earlier. I can only assume how much effort goes into these videos, but I sincerely hope you'll keep making them - they are truly awesome.

[@MoscleBrog]

this GUY is Giga Chad in Explaining the most driest and the most unusual subject (Discrete mathematics) in a fun way. only primer can pull this off!

[@SL-ef8jv]

Just learned this in class, and you helped me understand this so much better. Thank you so much!

[@feyblack2197]

So glad you brought this equation back to talk about. One of my favorite videos you've done is the coin flip one and I like using the binomial distribution formula when I can, but always forget what the values would stand for and I'd have to go to the linked video to remind myself. This will be much easier to find and sit through.

[@strawberry942]

This is great timing! I have my maths A level mock in a few weeks, and I'm not the biggest fan of stats, so this is really useful for brushing up on it.

[@richardcampbell4506]

Easily the best description of Binomial distributions and, most importantly, the fundamentals that support it. Fantastic! I’ll be sharing it with my son. thank you 👍

[@bassoonatic777]

This is quite good. If I still taught Prob and Stats, I'd share this in my class.

[@loopeater8338]

How did you reply to this 1 day ago???

[@thekeyboardwarrior1018]

Hold up how did this comment become 1 day old but the video isn't an hour old

[@FriesOnYt]

wtf how did you comment one day ago the video was made 38 seconds ago

[@AceFaz]

​@@loopeater8338 Video was unlisted before releasing, and they had the link to view it.

[@AceFaz]

@Don't Read My Profile Picture wasn't planning on it

[@christinemeili2398]

I’ll keep this in my pocket for when I have my statistics class this autumn

[@jeremyelser8957]

Such impressive visualizations. The little extra efforts like making the numbers move or blink to guide the eye are very helpful.

[@dursung_]

Where have you been for a whole year 😭 I missed you so much, always appreciated your way of teaching. Keep it up bro 💯 *Your team's Yasuo actually being good 😂

[@ruzgar1372]

I would have had less trouble with combinations and probabilities in highschool if this video existed back then. Very nice and intuitive explanation.

[@stanlee268]

Love your videos.Keep up the good work.

[@PrimerBlobs]

I will try. >_

[@spacerocket6929]

This was actually a mandatory topic in my Abitur (German Leaving Examinations in High School). Good to come across a video and test my knowledge :)

[@MaxCubing11]

If Primer uploads a video, you know it's a good day

[@molybd3num823]

primer

[@MaxCubing11]

@@molybd3num823 sorry, autocorrector

[@flipgalaxy711]

Perfect timing for my A-level Stats paper in two days time!!!

[@eridanus6206]

i just finished my stats exam why the hell am i watching a video on the binomial dist

[@robertlee8519]

Because you love it. Nerd.

[@jokalokkim793]

Same HAHA

[@anon4631]

This is the best video on internet about Binomial Distribution. I can't thank you enough. Thank you

[@puffer2939]

Whenever Primer uploads. It’s a good day.

[@Eggmanlover]

holy moley I never learned about this in school, but I've occasionally been interested in calculating probabilities for certain things, and my eyes glazed over when I looked up binomial distribution, but seeing it here, it's gotten a LOT easier to understand... nice video!

[@blacky____05]

This isn't overexplained, this is the explanation I wish I'd gotten in school. Thx 👌

[@25thEffect]

these videos really cement in the fact that i prefer statistics/combinatorics to things like calculus. i struggle to pay attention to and care about what goes on in my calculus classes, but i willingly watch, stay engaged with, and seek out more content focusing on this sort of stuff. thanks for reminding me that not all math is nightmarish 😉

[@RudyOMP]

I wish this video came out like 5 years ago when I had to learn this

[@phyphor]

Your videos don't teach me anything new but they are so well made I want "the algorithm" to know this is good content so I watch all the way to the end, give it a thumbs up, and even interact with it further by leaving a comment like this one! Seriously, though, your videos are always really good and you deserve to know that.

[@ilikeplanes5292]

I litteraly just learnt this exact thing for the first time in my maths lesson yesterday!! What are the chances!?

[@PrimerBlobs]

100%

[@ilikeplanes5292]

@@PrimerBlobs Did you use the formula to get to that conclusion 😅

[@MaskedDeath_]

I've had combinatorics in high school, and we did "learn" the formula there - as in, "this is the formula, you need to remember it because it works". Thanks to this video, I've finally understood where the formula comes from. Thanks!

[@MrProfessorFelipe]

A única coisa ruim desse canal é que ele deveria postar vídeos todos os dias. MUITO BOM!

[@NznKaRasyt8]

I love how some of your videos are somewhat simple and some make me rewatch a few times

[@saram3604]

Keep up the good work!

[@PrimerBlobs]

Thanks, Sara!

[@DavidMarketh]

OMG it’s Primer

[@sandilemasuku2240]

I loved how you explained this topic,i was kinder looking for a video like this for five dacade ago now i have found one, i was that guy who thought that statistic and probability are boring topic and hey it turns out this video woke up the inner beast in me to go back and study statistics and probability on engineering mathematics and advance engineering mathematics, i wish to see more video about statistics and probability in the near coming month,thank you, your sponsor and supporter .

[@coned07]

lmfao the Yasuo reference at the start

[@jrodartec]

I always watch primer, regardless of the subject, because if I do not know it its a great opportunity to learn it, and if I already know it its still a great opportunity to learn about communication and didactics. I always end the video feeling smarter and that keeps me engaged. Thank you very much for the effort in making these as easy-to-understand as possible!

[@KevinTan]

*"You miss all the shots you don't take"* - Michael Scott, The Office

[@louisrobitaille5810]

9:59 It triggers me when people say that 0! is defined as 1 when it's not. It's calculated using the Γ formula 😐. The gamma formula is basically just the factorials extended to the Reals and Complex numbers instead or being restricted to the natural numbers. (If you type x! in Desmos, you'll see that the graph also has lines in the negatives, that's why.)

[@randy3222]

My teams yasuo being good is always 0%

[@thekeyboardwarrior1018]

I'm a bot

[@streambotnt2095]

I am supposed to learn this for school and my teacher unfortunately isn't the best when it comes to explaining, so it is very nice to have you make a video on this topic.

[@zix2421]

6:25 отличный совет, я возьму его на заметку

[@markiyanchaklosh207]

The best video I saw on binomial distribution, thanks a lot for your work!!!

[@KirbyGamer99]

I love how at 5:00 one blob in the 3/3 section happened to drop the ball and you just see it fall out of the screen lmao

[@yourmom6472]

Why does this have almost no likes

[@petermoras6893]

One of the things i think should always be brought up when mentioning Pascal's triangle, is that you can describe it by multiplying odds as if it was a polynomial. For example: Lets say you had that you could either make a shot or miss it. This could be described as (X + Y), where X is a missed shot, Y is a made shot. If you make 2 shots, it would look like (X + Y)^2 = 1X^2 + 2XY + 1Y^2. This holds with n shots, or (X + Y)^n. You may also notice that the expanded polynomial is also pascal's triangle, which is how we can easily calculate the triangle in the first place. This also works with more than 2 distinct outcomes, like (A + B + C +D)^n.

[@ormapa1206]

He came back!!! 🎉🎉🎉 I really enjoy this videos.

[@hollowshiningami3080]

Brooo... It's Primer! He's back! Jokes aside I love your videos man, hope to see more of you soon 👊

[@HarrietJade-e4m]

8:50 HA! I recognized Pascals triangle before you said it. I didn't think it had any practical applications, guess I was wrong. Thank you for the explanation 😁

[@gabrielgs7925]

Love the way you ensured people like me will sit through the whole end cut - like, of course I wanna support the poor blob at the end until it succseeds! 😆☺️ Love it!

[@SirPembertonS.Crevalius]

Complicated Math explained in a simple and softspoken manner with blobs is THE best method of learning math and I will die on this hill.

[@BazilRat]

You're back! One of the best math channels on YT

[@user-db4lk7yg3o]

I recently finished alg 2 and we learned this but skipped over most of the explanation and went right to the combinations and permutations, it's nice to learn more about what makes these formulas work.

[@CyanZone0]

me and the boys after the blob at the end scored a shot: *LETS GOOOO*

[@metalpunk]

6:18: "These blobs don't even have the memory of a goldfish" Blob gives a lil smile. They're so precious. I love them

[@Lightheartednecromancer]

when you only know one word from the title you just know it’s gone be good

[@evanzieg]

I saw the basketballs slowly rolling off the courts around 3:52 and had to comment. If intentional, that is such an amazing attention to detail. If not, it's like a little easter egg (and just say it was intentional 😂)

[@rokushou]

I have taken enough stats classes to thoroughly understand and use the binomial distribution, but this is the best explanation of the binomial coefficient formula I have heard.

[@atlas4733]

Literally did my final math exam (12th grade) today and I did revision for analytical combinatorics covering this exact subject! I'm surprised how well I understood this video. There were a few aha moments where a couple things at a time slotted into place :)

[@marcomonti5758]

Fantastic video! The quality has really gone up recently!

[@samjam1992feb]

Very Few Times I have seen someone explaining such concepts with such clarity.Thanks, A lot

[@annalund4011]

Love this stuf omfg. Supporting how I can, you guys are awesome !

[@zadman0447]

I need to submit an essay today at noon. It’s quarter past midnight and I haven’t started, instead I am watching this video. I am an accountancy student, and this will never be relevant for me, but I’m still watching this video.

[@Softdattel]

Gosh, by jove, you must be clever.

[@marcorodrigoramos]

4:30 HEY THE BLOB AT THE LEFT TRIED TO SHOOT ANOTHER TIME

[@yeahnotdiamonddevv]

i was literally rooting so hard for the lil dude at 14:40 to make his shot i felt so bad lmfao

[@superson5586]

I really enjoy the style that you present in and would love to see more videos. I love getting your notifications.

[@sokkaalbertus7407]

Learned nothing new, except from the amount of simulations your computer can handle, still really enjoyed the video. Well done

[@aepokkvulpex]

The slowest rolling basketball finally falling around 2:44 was so satisfying

[@codys7436]

Love the league reference for Yas in the beginning 😂

[@brightsideofmaths]

Thanks for that! I am huge fan of your videos and the binomial distribution :)

[@BrainiacSlime]

You know its going to be a good day when there's a new primer video and a new numberphile video in the same week.