How to Calculate Conditional Probability

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  • Опубликовано: 14 апр 2012
  • Tutorial on how to calculate conditional probability (Bayes Theorem) for two events P(A), P(B), P(B|A) with two examples using
    Playlist on Probability
    ruclips.net/user/course?list=EC...
    / partymorestudyless
    Created by David Longstreet, Professor of the Universe, MyBookSucks
    / davidlongstreet

Комментарии • 267

  • @saokoc
    @saokoc 2 месяца назад +2

    11 years old and is still the clearest video i've come across so far. The visuals helped so much. I appreciate you!!

  • @shockvoz1234
    @shockvoz1234 12 лет назад +8

    Please continue to post these very clear and concise explanations. These videos are by far some of the most clearest explanations of statistics. Probability of finding a video as this: one in a million.

  • @huseynhajiyevakif
    @huseynhajiyevakif 10 лет назад +88

    youtube - helping bachelors since 2007

  • @statisticsfun
    @statisticsfun  11 лет назад +5

    Thank you for the feedback!
    Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

  • @statisticsfun
    @statisticsfun  11 лет назад +11

    The pace is always hard for me because the RUclips audience is so diverse. My target audience are those students that are struggling with statistics and I have learned that for a struggling student the pace can never be too slow.

  • @statisticsfun
    @statisticsfun  11 лет назад +3

    Thank you so much for your positive feedback! Much appreciated.
    Make sure you like MyBookSucks on Facebook (see link in video description). This will help other students find the educational video.
    Good luck in your classes, too!

  • @statisticsfun
    @statisticsfun  11 лет назад

    Thank you for you feedback. Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

  • @statisticsfun
    @statisticsfun  11 лет назад +3

    Wonderful to hear the videos are helpful for you and I do appreciate the feedback.
    Make sure you like MyBookSucks on FaceBook (see video description for link). This will help other students find the educational videos.

  • @statisticsfun
    @statisticsfun  12 лет назад +1

    Appreciate the great feedback. Make sure you tell your friends and classmates about MyBookSucks and like us on facebook to (see the link in the description of the video).
    Thanks again!

  • @statisticsfun
    @statisticsfun  11 лет назад +1

    I think you are referring to when I change the problem starting at about 5:34 in the video. In the second half of the video, I change the problem from P(B) being an odd number to P(B) being equal to 1.
    Make sense? If not let me know and try to expand on your question a bit.

  • @gloriouscubeshine
    @gloriouscubeshine 12 лет назад

    Great, I've a Stats exam in a few weeks and you're making my life a lot easier with these videos!

  • @kellyjameson749
    @kellyjameson749 11 лет назад +2

    Thank you! I'm taking stats for the first time this year as a senior in high school and most of it comes pretty easy but this is something I was never able to wrap my mind around! This was very helpful for me and I feel so relieved!

  • @Aarozinho
    @Aarozinho 7 лет назад

    This was the clearest explanation of this concept I've seen anywhere. Thank you.

  • @statisticsfun
    @statisticsfun  11 лет назад

    You are very welcome and I do appreciate the feedback. Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

  • @joshuafancher3111
    @joshuafancher3111 6 лет назад

    Thank You! This is the best explanation of conditional probability I have come across. The Venn diagram and the verbiage "they interset 2 out of 6 times" really drove home the meaning of P(A∩B)

  • @statisticsfun
    @statisticsfun  11 лет назад

    You are very welcome.
    Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

  • @statisticsfun
    @statisticsfun  11 лет назад

    Let me know when in the video you are questioning. This will help me answer your question.

  • @statisticsfun
    @statisticsfun  11 лет назад

    You are welcome! Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

  • @statisticsfun
    @statisticsfun  11 лет назад +3

    The pace and length for me is always a struggle because the RUclips audience is so diverse. Thanks for you input.

  • @breakdancerQ
    @breakdancerQ Год назад +2

    This was an absolutely incredible video. Far and very far better than a stats course I am doing.

  • @sea20era
    @sea20era 8 лет назад +5

    Super helpful and working step by step is super helpful. Thank you so much for this video!

  • @statisticsfun
    @statisticsfun  11 лет назад

    Many Thanks! Make sure you help me spread the word about the free videos. One thing that helps is if you like MyBookSucks on Facebook (see link in the video description).

  • @mattdesjardins5981
    @mattdesjardins5981 Год назад

    You’ve been the first person to get me to understand this. Thank you!!!

  • @karaganiamwamlole6412
    @karaganiamwamlole6412 8 лет назад +13

    I just became the 1000th person to like this video because you, sir, deserve it. Thanks!

  • @basalduat
    @basalduat 6 лет назад

    Indeed! This is a visual learner's paradise. Very well done! I'm so glad I found this site!

  • @stephaniemcmullin656
    @stephaniemcmullin656 4 месяца назад

    THANK YOU! After numerous searches I finally came across your account! This is the one that made it click!

  • @statisticsfun
    @statisticsfun  12 лет назад

    Great suggestion and it is my plan to have a series of videos on Bayes Theorem. I hope to have one done within the next week or so.

  • @cindyash9018
    @cindyash9018 8 лет назад

    Thank-you so much! I've been in the hospital for a while and I have a lot of school work to do. Most of it is easy but conditionals are super difficult. I've never seen anyone who made math this understandable!

  • @sydneyslabosz7847
    @sydneyslabosz7847 6 лет назад

    really helps seeing it drawn out and explained step by step like this, really helps thank you!

  • @irishamelin4887
    @irishamelin4887 3 года назад

    I was getting so frustrated because I couldn't figure this out but your video was a LIFE SAVER. Thank you so much!

  • @regielb1
    @regielb1 11 лет назад

    Great example! The first time I have seen a complicated subject explained in very understandable terms.

  • @GaryHutsonVBA
    @GaryHutsonVBA 8 лет назад

    Love it. Thank you so much. Refreshing my old maths knowledge. You sir, are a legend!

  • @jakobmetzradt7703
    @jakobmetzradt7703 10 лет назад

    Thank you so much, My teacher taught us this today, and he lost me in the beginning, you made it easier to understand what P(B) and P(A) is. I watched the video twice and I am starting to understand it more and more. Thank you.

  • @statisticsfun
    @statisticsfun  11 лет назад

    You are very welcome. I appreciate questions because it helps me understand what students are struggling with and then I can create right videos.

  • @statisticsfun
    @statisticsfun  11 лет назад

    Great to hear and good luck on your test too! You can do it.

  • @anitasmith7764
    @anitasmith7764 6 лет назад

    So easy to understand. I didn't feel it was to slow at all, bc I need time to process what you say before you start on something else. great job!

  • @statisticsfun
    @statisticsfun  11 лет назад

    Well thank you very much and I appreciate the feedback. Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

  • @kb101bk
    @kb101bk 11 лет назад

    you explained this really well and i appreciate that you went slowly, thanks so much!

  • @westside907
    @westside907 11 лет назад

    spent whole night tryna learn conditional probability this video taught it the best

  • @statisticsfun
    @statisticsfun  11 лет назад

    Good question. If you look at the video starting at about 4:30 you will see that I use P(A) and P(A) and the intersection is P(A∩ B) not P(B). Is this what you mean? If not let me know the time in the video that you are talking about.

  • @statisticsfun
    @statisticsfun  11 лет назад

    Great to hear!
    Make sure you like MyBookSucks on FaceBook (see link in video description). This will help me spread the word about the educational videos.

  • @maheennadeem7760
    @maheennadeem7760 5 лет назад

    You are the best. Man, love your videos, keep it up. You deserve a like and a subscriber. Thanks.

  • @rostammalik2071
    @rostammalik2071 4 года назад

    Your teaching process makes me easy to understand.Thank you sir.

  • @statisticsfun
    @statisticsfun  12 лет назад

    Many thanks for your feedback, much appreciated.

  • @elala02
    @elala02 6 лет назад

    I have final exam in the morning, needed refresher, and love the slow pace !

  • @atanugg9372
    @atanugg9372 7 лет назад

    one of best intuitive animated video make probability learning more fun..thak you sir.

  • @ScarFace9797
    @ScarFace9797 11 лет назад

    Thanks for this! Really helped get my head around the formula issues.

  • @elainesingh4343
    @elainesingh4343 11 лет назад

    Hi! Thank you. This was so helpful considering the fact that I have been finding stats so difficult.

  • @coolcatj7
    @coolcatj7 11 лет назад

    And thx for actually taking the time to at least go through some of these, and thx for the econ videos they really were super valuable for International Econ class and understanding the trade models.

  • @whimsyxoxo
    @whimsyxoxo 3 года назад

    This has made it much clearer for me, thank you!

  • @blurredmeh1313
    @blurredmeh1313 11 лет назад

    i got it finally.......a great help for my CAT preps...thnx prof...

  • @indexoverflow
    @indexoverflow 12 лет назад

    Great videos, they've helped me a lot. I'm very impressed by the illustrations and was thus wondering if you could share what program(s) you've used to make these videos?

  • @gloriouscubeshine
    @gloriouscubeshine 12 лет назад

    That was great and couldn't have come at a better time! Thanks!
    Could you do something like this for Bayes Theorem please?

  • @shockvoz1234
    @shockvoz1234 12 лет назад

    Will do. I'm studying to become a math teacher and find these videos to be of tremendous help ;)

  • @stoicfloor
    @stoicfloor 11 лет назад

    Even better than my teacher.
    Precise, to the point, easy to understanding.
    How I wish you were my Math teacher:(

  • @danielluna1399
    @danielluna1399 7 лет назад

    Thank you! My teacher couldn't tutor me today & I have my finals tomorrow. Thankfully I saw this video!

  • @statisticsfun
    @statisticsfun  11 лет назад

    Thanks and it is my plan to build examples to help people do better on the GMAT / SAT / ACT, etc.. Good luck on your GMAT too.

  • @statisticsfun
    @statisticsfun  12 лет назад

    Yes, you can use a decision tree to help understand conditional probabilities.

  • @64z
    @64z 11 лет назад

    This was amazing!!! I was trying to figure out (the sum is at least 10, given that the sum is at least 9). I figured it out after watching this video!! Thx!

  • @dzsiegel
    @dzsiegel 10 лет назад

    Using the visualization of the dice was very helpful. That alone allowed it to click for me. Thanks!

  • @padurani
    @padurani 11 лет назад

    Thanks for clearing my basics. I am studying after 16 years and preparing for CFA.

  • @myeshacbj
    @myeshacbj 11 лет назад

    Thanks this helped! Your wording of the formula is what made the difference for me! :-)

  • @jenniferwood8308
    @jenniferwood8308 11 лет назад

    Wow! Thanks so much for clearing that up for me!!!!!! :) I appreciate your time and effort!!!!!

  • @efrosynimaher3454
    @efrosynimaher3454 11 лет назад

    thank you very much for this video, the best explaination I have watched!

  • @cherieminn2673
    @cherieminn2673 5 лет назад +1

    my best teacher ever💯👍🏻 my QUANS teacher sucks!

  • @statisticsfun
    @statisticsfun  11 лет назад

    That is great to hear. I was going to name my company/website/FB page -- MyProfessorSucks but went with MyBookSucks instead :). Make sure you like MyBookSucks on FaceBook (see link in video description). This will help other students with horrible professors find the videos.
    Thanks!

  • @statisticsfun
    @statisticsfun  11 лет назад

    That is great! Make sure you like MyBookSucks on FaceBook (see link in video description). This will help me spread the word about the educational videos.

  • @statisticsfun
    @statisticsfun  11 лет назад

    Thank you and good luck in your classes. Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

  • @statisticsfun
    @statisticsfun  11 лет назад

    Well, thank you! Make sure you like MyBookSucks on FaceBook (see link in video description). This will help others find the educational videos.

  • @Hebahamdy48
    @Hebahamdy48 6 лет назад

    U r genius man.. as always thx alot.. Statistis is really fun because of u

  • @Muuip
    @Muuip 9 лет назад

    Great presentation, thank you!

  • @statisticsfun
    @statisticsfun  11 лет назад

    You are welcome and good luck on your CFA!

  • @hitagisenjougahara9074
    @hitagisenjougahara9074 8 лет назад

    Thank you, you made it much more clear.

  • @abrarabdullaha3905
    @abrarabdullaha3905 10 лет назад +4

    that's totally amazing

  • @minhthuhoang3277
    @minhthuhoang3277 7 лет назад

    Beautifully explained. Thank you so much! You saved me.....:))

  • @josephajoseph9535
    @josephajoseph9535 6 месяцев назад

    Perfect explanation!

  • @nima90
    @nima90 11 лет назад

    Re-Brushing this for GMAT, very well done. Should give some thought on using actual example from standardized tests.

  • @russellnichols5746
    @russellnichols5746 8 лет назад

    Thanks! that was very clear. I like the graphics.

  • @sansari888
    @sansari888 9 лет назад +1

    Thank you, you,ve made it easy.

  • @tjananthan
    @tjananthan 10 лет назад

    Thank you, it's really helpful!

  • @warnerwildernessphotography
    @warnerwildernessphotography 4 года назад

    Better than my math teacher... Thank you!

  • @LuisKing150
    @LuisKing150 9 лет назад +17

    THANKS! Im seriously studying this before my exam in 2 hours!! LOL

    • @statisticsfun
      @statisticsfun  9 лет назад +3

      Luis Mendez So.. you were "partying more studying less" If you get a chance could you please like our FB page. www.FaceBook.Com/PartyMoreStudyLess It will help others find the videos.
      Good luck on your exam, you can do it!

    • @shuotan
      @shuotan 9 лет назад

      statisticsfun this video is very useful! thank you very much.

    • @alishadaswani6796
      @alishadaswani6796 9 лет назад +1

      Luis Mendez for me 15 minutes...

    • @rayanamir6565
      @rayanamir6565 5 лет назад

      me

  • @statisticsfun
    @statisticsfun  10 лет назад

    Great to hear... maybe you could send a link to your teacher :)

  • @jessikuur
    @jessikuur 9 лет назад

    Thanks! Helped me a lot!

  • @statisticsfun
    @statisticsfun  11 лет назад

    While I can't be your teacher, I can post videos for you. And I do call myself the "professor of the universe" :)

  • @Nurse2bii
    @Nurse2bii 11 лет назад

    This was lovely... I thank you i have aa horribble professor aand this helped sooooo much!

  • @sarahalloush3170
    @sarahalloush3170 10 лет назад

    Hi, Thank You SOO MUCH for your work!! Its very clear, especially with the animation. Brilliant idea. Can you just explain to me why the P(A intersection B) has a denominator of 6, in the second case? Thank You

  • @abbeyreddig7223
    @abbeyreddig7223 9 лет назад +1

    Thank you very much! so helpful!!!

  • @statisticsfun
    @statisticsfun  11 лет назад

    Thank you so much. I try to use 21st Century Tools perhaps that is the difference.
    Make sure you like MyBookSucks on FaceBook (see link in video description). This will help me spread the word about the educational videos.

  • @MorolakeOBolarinwa
    @MorolakeOBolarinwa 7 месяцев назад

    Thank you for simplifying probability for me 😊

  • @statisticsfun
    @statisticsfun  11 лет назад

    You are very welcome.

  • @amitgupta25121993
    @amitgupta25121993 10 лет назад

    thanks for sharing the knowledge

  • @501supershine
    @501supershine 10 лет назад

    Thank you very much! This helped alot!

  • @mattleo9473
    @mattleo9473 11 лет назад

    you are a great person.

  • @bonbonpony
    @bonbonpony 8 лет назад

    +statisticsfun Nice presentation, especially the visual aids :>
    Just a minor nitpick: it would be nice if you included the 4 and 6 dice outside the Venn diagram, for completeness of the sample space. Then it would be easier to see where the 6 in the denominators comes from. It is a bit confusing when there's a 6 in the denominator, but one can see only 4 possible dices on the diagram.
    Also it would be nice to show how the "|A" shrinks the sample space to just the P(A) circle on the diagram. I see in the comments that there were some people who were confused by that. Showing that the "|A" part makes the sample space to choose from smaller - or throwing the impossible cases out the window in that matter - should make things easier to understand.

  • @lightt_
    @lightt_ 10 лет назад

    Thank you! Super helpful. liked and subsciribed.

  • @alishadaswani6796
    @alishadaswani6796 9 лет назад +30

    You sound like the guy from OwnagePranks... nice video tho :)

    • @statisticsfun
      @statisticsfun  9 лет назад +4

      Alisha Daswani I have heard that from a couple of people now. Interesting. Hopefully you will like, share, subscribe, If you get a chance could you please like our FB page. www.FaceBook.Com/PartyMoreStudyLess
      It will help others find the videos.

    • @jay4eva2010
      @jay4eva2010 8 лет назад +1

      Who knows ?
      Ownage maths prank ?

    • @lifehacks5813
      @lifehacks5813 6 лет назад +1

      Haha

  • @statisticsfun
    @statisticsfun  10 лет назад

    I don't have anything on Bayes yet, but I plan on creating something in the next few weeks.

  • @bernardonful
    @bernardonful 7 лет назад

    thank you so much you made my day

  • @jcarlosquebrado6716
    @jcarlosquebrado6716 7 лет назад

    great example. thank you.