Addition rule for probability | Probability and Statistics | Khan Academy

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  • Опубліковано 25 гру 2024

КОМЕНТАРІ • 337

  • @gavinmcmahan2840
    @gavinmcmahan2840 5 років тому +193

    I love how this took my 1 hour and 20 minute class and compressed it into an easier to understand 10 minute video.

    • @amansaini6908
      @amansaini6908 Рік тому

      is this enough for gate for probability section??

    • @ht3111
      @ht3111 Рік тому +2

      My class was 2 hours and 10 minutes

  • @G3TMORE
    @G3TMORE 9 років тому +331

    I want to know who you are, because you are awesome to learn from. Thank you! If teachers were more like you, they would deserve higher pay.

    • @yrf3766
      @yrf3766 9 років тому +80

      +Glenn Thweatt he is a guy who has graduated from Massachusetts Institute of Technology with a degree in Bachelor of Science & in mathematics,& electrical engineering, and computer science& later getting his Master of Science and electrical engineering and computer science. He also holds a degree in Master of Business Administration Harvard Business School

    • @-xxfxukr4g3xx-97
      @-xxfxukr4g3xx-97 6 років тому +6

      Yeet

    • @turret1427
      @turret1427 6 років тому +3

      Or to actually teach

    • @nrishiee5231
      @nrishiee5231 5 років тому +28

      @@yrf3766 he also seems to have a pretty clear grasp on colour composition. its really pleasing to look at his notes.

    • @ekanthikamanoj9967
      @ekanthikamanoj9967 5 років тому +19

      He is Sal, He opened Khan Academy a nonprofit foundation on the internet to teach kids math, reading,coding etc. I have Khan academy you can download and create a profile for yourself! it is really useful

  • @pamfrease3462
    @pamfrease3462 5 років тому +71

    whoever this godly mathematician is...hes a true blessing

    • @kaabfarooq6179
      @kaabfarooq6179 4 роки тому +4

      Salman Khan, founder of Khan Academy

    • @ashwjn
      @ashwjn 4 роки тому +2

      Kaab Farooq the actor 😱

  • @nobex7755
    @nobex7755 6 років тому +167

    My teacher just teaches us like boom! Then u plus the boom! Bcs it has a boom! And then done! Then he tells us there's gonna be a test tomorrow and leaves the class. I need a teacher like u in ma school.

  • @meaganboodoo315
    @meaganboodoo315 8 років тому +182

    i realize from watching these videos that im not dumb lol this stuff is so simple. im not good at memorizing really but apparently i do remember examples, images and color. thats probably why i highlight entire pages lol

    • @CubicleComa369
      @CubicleComa369 8 років тому +12

      Meagan Boodoo good for you(no sarcasm)

    • @samdemaidgroves7056
      @samdemaidgroves7056 8 років тому +4

      VDAF : I AM TRIGGERED BY U!! THIS IS RAPE

    • @AjayMittur
      @AjayMittur 6 років тому

      Same here haha

    • @Sam-pl4jn
      @Sam-pl4jn 6 років тому

      Can relate!🤣

    • @DiyonJude
      @DiyonJude 4 роки тому +4

      its probably the fact teachers do 1hour of explaining and we can't understand anything

  • @MrRushSkies
    @MrRushSkies 4 роки тому +17

    8:12 Please don't let me keep hanging.
    8:19 Sigh, Perfection.

  • @zoyakhoja2967
    @zoyakhoja2967 4 роки тому +16

    the "lellow" was so adorable

  • @Kurlyheadt04070407
    @Kurlyheadt04070407 9 років тому +23

    thank you so much...my professor hardly speaks any english and he made this look do difficult in class. you explained this concept perfectly

  • @edwinnaranjo9435
    @edwinnaranjo9435 8 років тому +359

    i cant see green or yellow...rip

    • @yawner6234
      @yawner6234 6 років тому +8

      same lol

    • @amanninawe2375
      @amanninawe2375 5 років тому +8

      144p users

    • @shanboss8296
      @shanboss8296 5 років тому +17

      @@amanninawe2375 wow that just went straight through your head lol

    • @fizaabid6565
      @fizaabid6565 4 роки тому +1

      @@yawner6234 what is the meaning of lol

    • @Husinator56
      @Husinator56 4 роки тому +4

      @@fizaabid6565 laughing out loud

  • @josephstalin8442
    @josephstalin8442 3 роки тому +3

    So much better than my stats lectures. My professor rushes through topics and examples then if you forget how to do something he’s like, “we learned that already”

  • @nahidiac
    @nahidiac 8 років тому +23

    Salman, this is great. You're great. May God bless you and accept these good jobs from you.

  • @andrewbennett3827
    @andrewbennett3827 6 років тому +2

    I remember taking this my junior year of high school, now that I'm a junior in college and my major is business management, I got to take a business statistics course. I'm watching this to refresh the old memories.

  • @farhannoor3935
    @farhannoor3935 8 років тому +31

    sage of the six maths

  • @geniusavage
    @geniusavage 4 роки тому +6

    Thanks a lot sir. I did Biostatistics in my bachelors degree then i was much more younger and presumably I use to understand all of this. but that's ten years back: now i am in graduate medical school and my Medical Biostatistics teacher made everything so complex, However with your explanation everything is beginning to click again. God bless your sir.

    • @amansaini6908
      @amansaini6908 Рік тому

      is this enough for gate for probability section??

  • @drithehilarious9856
    @drithehilarious9856 2 роки тому +1

    Omg you need a reward yo, that’s how good of an teacher you are

  • @Arf-jk1dw
    @Arf-jk1dw 3 роки тому +1

    You guys actually DESERVE to monetize your videos!!!

  • @zouraizkhan2467
    @zouraizkhan2467 4 роки тому +5

    my teacher explained this perfectly but missed out on the part explaining with set diagrams. thank yu for explaining it

  • @proudindian8130
    @proudindian8130 9 років тому +9

    Thanks a lot, it becomes easy to understand concepts from your videos

  • @chesnabosnic4915
    @chesnabosnic4915 6 років тому +9

    Just want to say how thankful I am for these videos! They help me so much in understanding SO many different math topics! Great instructor and lessons! The different colors and repetition of phrases help a lot too! :)

    • @amansaini6908
      @amansaini6908 Рік тому

      is this enough for gate for probability section??

  • @sentient314
    @sentient314 4 роки тому +11

    i can't get this word "lellow" out of my head

  • @francesmarquez6554
    @francesmarquez6554 3 роки тому

    It just clicked 😭 God bless this page. Online classes try to simplify things and all they do if confuse people 🥺 thank yoooou!

  • @pattgardens3961
    @pattgardens3961 9 років тому +7

    Wonderful explanation! as a visual learner I found this example so helpful!

  • @shaniquewright1951
    @shaniquewright1951 4 роки тому +5

    I actually get it now....should have watched this before doing my quiz

  • @geekxsir3610
    @geekxsir3610 3 роки тому +2

    After an exam, and three lectures confusing lectures you explained this better than my professor! This channel is a godsend!

    • @amansaini6908
      @amansaini6908 Рік тому

      is this enough for gate for probability section??

  • @SashaWasHereToday
    @SashaWasHereToday 11 років тому +2

    He explained things really well & the video was kind of funny haha.

  • @warrior100girl
    @warrior100girl 6 років тому +2

    I'm a math tutor for the next semester summer 2018 in Computer Science and I'm just here to be inspired by all the good examples.

  • @alexgrant-explainingmaths8077

    You are one of the world’s greatest conceptual mathematics educator! Big up from Jamaica🇯🇲

  • @yourboyfrannsayshi
    @yourboyfrannsayshi 4 роки тому +2

    thank you so much!! I am a huge visual learner, helped me so much!!

  • @SameerJoshi0395
    @SameerJoshi0395 2 роки тому +1

    How beautifully it has been simplified..!!? Amazing.

  • @kawa_bata
    @kawa_bata 7 років тому +2

    Thank you Khan. I WISH every professor would teach like this. Jeez. Thanks again.

  • @sharonsabol2062
    @sharonsabol2062 8 років тому +7

    Thank you! Great explanation!

  • @kc2saxena
    @kc2saxena 8 років тому +20

    Khan the savior.

  • @chiedzarugoho2675
    @chiedzarugoho2675 2 роки тому +2

    He actually teaches better than than how my teacher taught it....thank you so much🙏❤💜

    • @amansaini6908
      @amansaini6908 Рік тому

      is this enough for gate for probability section??

  • @wb40t3
    @wb40t3 4 роки тому +11

    welcome dream to the champion's club forsenCD

  • @jeaninewilliams7831
    @jeaninewilliams7831 7 місяців тому

    This video is awesome and just watching how simple you took away a lot of my anxiety. I love how you don't overword things. Thanks

  • @xdgaming952
    @xdgaming952 3 роки тому +2

    6:58 a weird thing he just did right here was add 13 and minus 5 whereas he could add 8 cause they were the remaining cubes left and yellow and yellow cubes were already counted in

  • @ipwnnoobsable
    @ipwnnoobsable 13 років тому +3

    Sal, it'd be really cool if you made a playlist on the stock market; hedge funds, futures, etc. Thank you, and I enjoy your videos.

  • @No-tx9by
    @No-tx9by 7 років тому +4

    Thanks, this really helped me understand more about probability, this really helped because I am in the U.K and I'm currently doing SATs.

  • @AdityaSharma-hg4tm
    @AdityaSharma-hg4tm 10 років тому +3

    PLUS:i love your website!!its a good way to learn!!!

  • @dopentight
    @dopentight Рік тому

    I remember watching this video to prepare for an Engineering Stats exam in 2018 (got an A), now I'm watching it again to prepare for the FE.

  • @zeeshanhaider148
    @zeeshanhaider148 5 років тому +1

    Love this method... very very helpful.. Thank you

  • @nibrasmasri8413
    @nibrasmasri8413 5 років тому +3

    Great video as usual. Most valuable lesson I learned from it was to avoid repetition when counting overlapping sets. Since color and shape of object in this case are not disjoint sets, it is easy to make a mistake over counting. So, hasting into conclusion might be the most common mistake of calculating probabilities and counting.

  • @sidraasif4667
    @sidraasif4667 4 роки тому

    What a voice...!!!...what a way of teaching...marvellous 🤍

  • @Gbtx6
    @Gbtx6 8 років тому +4

    I wish I could like this twice ahaha. Great job!

  • @oybekjoraboyev7721
    @oybekjoraboyev7721 5 років тому +2

    Thanks bro great video i had some trubles in my uni. Very undestandable video and easy catch the main ideas.

  • @estella7417
    @estella7417 2 роки тому +2

    Wow! I understood it so well! I had failed to remember this formula before, and wasn't able to understand why it's just that way! But now, it's crystal clear. Thanks a ton! ❤

    • @flowingriver5695
      @flowingriver5695 2 роки тому

      Hey want to be study partner for khan academy? I'm self studying, feel unmotivated and lonely sometimes.

    • @amansaini6908
      @amansaini6908 Рік тому

      is this enough for gate for probability section??

  • @goodgriefblockhead
    @goodgriefblockhead 10 років тому +7

    Great job as usual. Thanks so so much :)

  • @SashaWasHereToday
    @SashaWasHereToday 11 років тому +1

    I l-o-v-e how you explained things. The book made this simple concept seem much harder.

  • @austinnegron1484
    @austinnegron1484 7 років тому +69

    43 people still failed their math test the next day..... pray for me guys

  • @mrscheekymonkey24
    @mrscheekymonkey24 10 років тому +2

    Thank you for your videos! They make Statistics so much easier to understand.

  • @natasha1987252
    @natasha1987252 10 років тому +5

    Thank you so much for your detailed explanation now l understand the concept well. :)

  • @chericha
    @chericha 5 років тому +2

    Excellent explanation Mr. Khan. Thanks again!

  • @markcisar4828
    @markcisar4828 7 років тому +2

    Thank you Khan Academy for another easy to understand and share clip.

  • @ainekification
    @ainekification 9 років тому +5

    Thank you. I love you.

  • @kaitlynncurry4018
    @kaitlynncurry4018 Рік тому

    I'm in a masters level stats class atm and this video helped simplify a question I was struggling on for like two days. I really liked the visuals and I ended up using the same concepts to solve a hw problem. Thank you for this! I'll be saving it for future use as well.

  • @hossainabeer
    @hossainabeer 4 роки тому

    Somebody give this man an award

  • @tonyakimrey4091
    @tonyakimrey4091 7 років тому

    The pictures and the colors help so much! TY, TY!

  • @janinebisschoff8432
    @janinebisschoff8432 11 років тому +2

    Thanks a lot Sam, it really helped me to unserstand this stuff

  • @AishLovesSpaghetti
    @AishLovesSpaghetti 4 роки тому +1

    You are awesome for creating and providing such easily understanble lectures for free.

  • @BafanaButhelezi-vh7zs
    @BafanaButhelezi-vh7zs Рік тому

    I LOVE THIS CLASS 😭

  • @rhoadess
    @rhoadess 13 років тому

    In probability, the sets are multisets (bags) rather than the idea of a general set in mathematics, where every element of a general set must be unique, and if any elements within a general set repeat, those repeats are removed. On the other hand, a multiset may have repeats. Examples: Multiset A = [3,3,3,3,1,1,2,2,2,], General Set A = {1,1,2,2,2,3,3,3,3} = {2,1,3}. This was something that confused me at one time, and thought I would mention it.

  • @whatsupwithtorii
    @whatsupwithtorii 4 роки тому +1

    Thankx so muchhh 💖💖😫🤞🏾🤞🏾

  • @Aries-Athena
    @Aries-Athena 11 років тому +2

    Thank you for this!

  • @MuhammadQasim-oo7yq
    @MuhammadQasim-oo7yq 6 років тому

    Khan and as well as Muslims are the best.. great job Salman Khan..your name is khan and you are a Teacher. .. superb

  • @SalK-3S3K
    @SalK-3S3K 3 роки тому

    What a teacher Khan is👌🏼👍⚡️💥!

  • @johnpereira6235
    @johnpereira6235 9 років тому +2

    Fantastic!!!!! Thanks for the great explanation.

  • @Derek-y9q
    @Derek-y9q 12 років тому +1

    Thanks!!! Keep up the good work!!!

  • @whiteeyedshadow8423
    @whiteeyedshadow8423 5 років тому +11

    "lello" lolly pops
    *proceeds to write the above message in green*

  • @danielmoon3681
    @danielmoon3681 3 роки тому

    Learning this in class... did not expect it to be as simple as you explained it LOL

  • @manwithtie6708
    @manwithtie6708 Рік тому

    it is easier to think each individual outcome as a single probability rather than a similar overlapping outcome which makes it weird for simple calculations, thanks for the video.

  • @SH-os1ck
    @SH-os1ck 5 років тому +1

    You're amazing sir!

  • @emelicabral8828
    @emelicabral8828 8 років тому +5

    So much better than my professor!!!!!!!!

  • @thesalazars3306
    @thesalazars3306 4 роки тому +1

    Saying *lello* is cute OMG I love *Math* 👌

  • @artokilponen6989
    @artokilponen6989 6 років тому +1

    One thing I've learnt about probabilities is that if you take a simple case and apply common sense to that, you probably find out some harder concepts easier to grasp. Like here, yellow or cube obviously means "anything but green spheres", so the answer has to be "everything - 9 of all options", so 20 of 29. This obviously doesn't mean you shouldn't learn that rule, but if you can't apply your logic to even the easiest problems, your logic is probably wrong and you need to re-work that.
    So nothing away from this video, I just wanted to give a different view.

  • @NaveenSharma-mz6tt
    @NaveenSharma-mz6tt 3 роки тому +1

    Thanks For Sharing this beautiful content! :)

  • @tyranttyphoon1222
    @tyranttyphoon1222 5 років тому +4

    Great Video! This definitely taught me some new ideas. One thing though: When you asked, "what is the probability of the object being a Cube or Yellow," the correct probability would actually be 15/29 because a yellow cube would not satisfy the problem. This is because you are saying the object needs to be yellow OR a cube, not yellow and/or a cube. Other than that, good explanation!

    • @User-ei2kw
      @User-ei2kw 5 років тому

      thats not how logical OR works

    • @User-ei2kw
      @User-ei2kw 5 років тому

      you are looking for an exclusive or

    • @tyranttyphoon1222
      @tyranttyphoon1222 5 років тому

      @@User-ei2kw That was a completely pointless comment. I was expressing my way of thinking to the creator of the video because I didn't understand why he chose that probability. Rather than posting a meaningless comment with no first-letter capitalization, punctuation, or grammar, maybe you could take the time to explain what I interpreted incorrectly just as a kind human being would (someone unlike you). I don't understand why there are people like you here in the comment section.

    • @nakamiyonemura2001
      @nakamiyonemura2001 5 років тому

      But isn't yellow encapsulates both cubes and spheres? It's presented in the diagram. How did you get 15?

  • @sophiat2058
    @sophiat2058 3 роки тому +1

    Can you please do a video on complimentary event with lots of examples please? I need to understand what the 1 represents.. does it represent the favourable event?

  • @AbdulKarim-cw8cv
    @AbdulKarim-cw8cv Рік тому

    You can also do this: P(A or B) = total # of outcomes - P(Neither A nor B)

  • @fawaddetho5374
    @fawaddetho5374 3 місяці тому

    Too good
    Love you sir for this lacture.

  • @internationalremixes6440
    @internationalremixes6440 7 років тому

    no words to explain the worth of this video!

  • @pranayblue
    @pranayblue 8 місяців тому

    Well explained, as always..

  • @Monobob74
    @Monobob74 13 років тому

    his is infinatley helpful for math competions

  • @haider1905
    @haider1905 8 років тому +10

    If I had teachers like you in my school!

  • @AayanBaloch-f2u
    @AayanBaloch-f2u 2 місяці тому

    Great method
    One week in one hour

  • @charlesfernandez8225
    @charlesfernandez8225 7 років тому

    Examples are always way harder than the actual questions... gotta love math :) FML

  • @kebenadebela2106
    @kebenadebela2106 5 років тому +1

    very appratiate

  • @darmajid9670
    @darmajid9670 4 роки тому +1

    6:50 it should be 5/29 not just 5.

  • @AgustinCabra
    @AgustinCabra 2 роки тому

    Thank you so much, very clear explanation

  • @الراقيالملكي-ص2ر
    @الراقيالملكي-ص2ر 6 років тому

    It helped me very much thank you Mr.Khan

  • @wassera9093
    @wassera9093 6 років тому

    You explained better than my stats prof.

  • @Mynamejeff-go2sq
    @Mynamejeff-go2sq 4 роки тому +1

    Who else is just reading through the comments and not actually concentrating on the video

  • @vincerossignolo6702
    @vincerossignolo6702 4 роки тому

    This helped thank you.

  • @shahd5874
    @shahd5874 5 років тому +1

    2019! Thank you so much.

  • @lovebaking2503
    @lovebaking2503 5 років тому

    you have explained the concept clearly.

  • @themichelle4551
    @themichelle4551 4 роки тому

    Thank you so much

  • @isohalilo0ggamer124
    @isohalilo0ggamer124 4 роки тому +1

    my teacher is a lazy sloth this guy is amazing

  • @mubangachibamba5164
    @mubangachibamba5164 3 роки тому

    Thankyou for this

  • @AdityaSharma-hg4tm
    @AdityaSharma-hg4tm 10 років тому +1

    nice! u guys are good!!!

  • @abhinavpatel6764
    @abhinavpatel6764 7 років тому

    Thanks a lot 🤗

  • @xxtotalbluexx
    @xxtotalbluexx 12 років тому

    You have saved me from failing statistics AP ..