Probability Tree Diagrams 2

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  • Опубліковано 19 жов 2024

КОМЕНТАРІ • 82

  • @syedabdullahraza2972
    @syedabdullahraza2972 4 роки тому +7

    Omg finally i found this vid this helped me in my finals THANXXX!!!
    btw who here is watching this in 2020

  • @scottatlas7359
    @scottatlas7359 9 років тому +7

    Not confusing at all.
    Very helpful.

  • @azlynazeem
    @azlynazeem 13 років тому

    Just a note to thank you for the magnanimity and generosity of making such an invaluable post in the interest of education. Yes this is fantastic and of immense benefit. Thank you sir!

  • @lena7665
    @lena7665 6 років тому +4

    I was confused with Jimmy picking the blue sweet first too but basically, the tree diagram is there to show you all the possible answers to the "First pick" as it can be blue or red. The probability of the blue is 7/10 and then we go from there to assume he picked a blue first so now it's 6/9. The probability of the first sweet being red is 3/10 and we go on from there to say that if he did pick a red it'll be 2/9.

    • @ruthkativu3642
      @ruthkativu3642 3 роки тому

      I was actually wondering how he knew if he took a blue one lol. Thank you

  • @mani1432u
    @mani1432u 12 років тому +1

    You sir are a legend
    i didn't understand anything when my teacher thought me, but your video is awesome
    thanks

  • @kayleerainers8028
    @kayleerainers8028 2 роки тому

    Its 2022 , nd ive been struggling with drawing a dependable tree diagram but this really helped so much , thank uoo

  • @mollyf1998
    @mollyf1998 9 років тому +3

    Very helpful, thank you so much!

  • @Siya1807
    @Siya1807 11 років тому

    Both of your videos are excellent!! Thank you!!

  • @kneve
    @kneve 12 років тому +1

    Where in the problem does it say he ate a blue one 1st? I thought he'd just randomly picked one - or is it a given because the teacher just told us it was a blue one?
    BTW, your videos are very clear & very easy to understand. Thank you!

  • @strangeperson700
    @strangeperson700 8 років тому +6

    Thank you. I love you.

  • @DavidandAngeloDNA
    @DavidandAngeloDNA 12 років тому +2

    Thank you so much! Totally refreshed my memory from early this year...god damn freshmen exams

  • @karlymiranda3869
    @karlymiranda3869 2 роки тому

    Thank you for making this video!!!!!

  • @rfbarrow
    @rfbarrow  11 років тому +2

    He doesn't have 7 blues left, but the probability of B then R is calculated as 7/15, which doesn't mean that there are 7 blues.

  • @richardgordon
    @richardgordon 3 роки тому

    Brilliant! Thanks again.

  • @elizathornberry1991
    @elizathornberry1991 13 років тому

    This would have explained it a hell of a lot better than my lecturer!

  • @monicmonitor
    @monicmonitor 13 років тому +2

    my teacher took 1 hour explaining this to me and i still dont get it. and now, after 5 minutes. i get the whole thing ,,,, amazing

  • @johnmellor932
    @johnmellor932 6 років тому +4

    So, you don't need to add them all up at the end?? I got 153/90 as my final answer.

    • @amaka.06
      @amaka.06 5 років тому +2

      It depends on the question

  • @azizanasoro8954
    @azizanasoro8954 4 роки тому +1

    Thank u soo much ,this was soo helpful

  • @AaronSunde4
    @AaronSunde4 7 років тому

    Very helpful for my college stats class! Thanks

  • @sarisavuletich9627
    @sarisavuletich9627 6 років тому +7

    maths is fascinating

  • @kryz9able
    @kryz9able 13 років тому

    i don't learn anything from my teacher. this is much easier to understand .Thanks!

  • @sadie1837
    @sadie1837 7 років тому +1

    Very helpful, thanks.

  • @davidkhachidze9232
    @davidkhachidze9232 5 років тому

    Nice explanation. Well done.

  • @edwinaldrin7789
    @edwinaldrin7789 8 років тому +1

    thanks mate i fond this..... what ever it is helpful
    Edwardo

  • @anonymous70611
    @anonymous70611 12 років тому

    This was brilliant its really well explained

  • @SLINNshady20
    @SLINNshady20 12 років тому +5

    Thats my GCSE sorted... ;)

  • @nh1622
    @nh1622 6 років тому

    Thank you Ron

  • @rumpobest9198
    @rumpobest9198 3 роки тому +1

    nice vid :)

  • @Servanting
    @Servanting 12 років тому

    hmmm i bet for the igcseexam questions will be extra harder than this. not to say that this is hard, its easy and hats for the video D

  • @Karim1scorpion
    @Karim1scorpion 13 років тому

    YOU ARE THE BESSSTTT !!! THANKK YOUUU MANN !!!!

  • @LpsBluesky
    @LpsBluesky 8 років тому

    omg thanks so much you are a life saver

  • @Idropfatklds
    @Idropfatklds 13 років тому

    veryy good guide mate thanks alot

  • @popmusic533
    @popmusic533 6 років тому

    Gr8 and helpful

  • @nanalili31
    @nanalili31 6 років тому

    Thank you you are very helpful

  • @samiul8439
    @samiul8439 5 років тому

    thank u u got me and 97%

  • @williamsonapril1
    @williamsonapril1 10 років тому +1

    thank u really helpppeddddddd god bless

  • @rfbarrow
    @rfbarrow  12 років тому +1

    To do the drawing etc I used ActivStudio software by Promethean, which is usually used for smart boards in classrooms. To make the movie clip I used Camtasia.

  • @kathir758
    @kathir758 11 років тому

    Thanks for this, but the questions are complicated and tricky cause there was an earlier one i did. Well you did surprised me i thought it was the same one but this one is a bit different.

  • @DontWorryWLU
    @DontWorryWLU 12 років тому

    What program do you use?

  • @612curtis
    @612curtis 12 років тому

    This is good revision :D

  • @jubilantbenjamin5849
    @jubilantbenjamin5849 Рік тому

    u are the legend

  • @lockyb91
    @lockyb91 14 років тому

    @LuffMileyCyrus he has only taken one sweet in the first pick so there will be 9 sweets left and then in the second pick he will take another sweet so there will be eight sweets left. so all up Jummy has only taken two sweets. there is 8 sweets left

  • @SuperNerd707
    @SuperNerd707 12 років тому

    question, are the events disjoint?

  • @chaz7716
    @chaz7716 4 роки тому

    BIG BRAIN MAN

  • @2222programmer
    @2222programmer 11 років тому +1

    hey fella ,,,, I like your accent :)

  • @isrln
    @isrln 10 років тому

    Thanks really helpes

  • @OFCL1
    @OFCL1 13 років тому

    he is goooooood !!!!!!!!!!!!!!

  • @86Miguelisimo
    @86Miguelisimo 9 років тому

    can you please help me with my problem?
    1. suppose you have five good (event G) fuses and two defective (event D) one have been mixed up. we select and test two fuses one by one, at random and without replacement.
    G1 event the 1st fuse is good D1 even the 1st fuse is defective
    G2 event the 2nd fuse is good D2 event the 2nd fuse is defective
    for some reason when I add up the numbers they dont come up to 1? can you please explain this problem

    • @rfbarrow
      @rfbarrow  9 років тому

      Miguel Salinas P(G1)=5/7,P(D1=2/7). Then P(G1G2) = 5/7*4/6, P(G1D2)=5/7*2/6, P(D1G2)=2/7*5/6, P(D1D2)=2/7*1/6. These probabilities add to 1.

    • @86Miguelisimo
      @86Miguelisimo 9 років тому

      Thank you! I dont know why i am having so much problem understanding this

    • @zeinababdi5130
      @zeinababdi5130 8 років тому

      Ron Barrow

  • @TheLadyindigo87
    @TheLadyindigo87 11 років тому

    how did you get 6/9 in the second pick?

    • @chickenshopbossman5099
      @chickenshopbossman5099 6 років тому +1

      cause he took one out
      oh wait 4 year ago

    • @rimurutempest6768
      @rimurutempest6768 3 роки тому

      @@chickenshopbossman5099 yeah that's why
      oh wait 2 years ago

    • @Saraaaggwgwhww
      @Saraaaggwgwhww 7 місяців тому

      ​​@@rimurutempest6768 yep
      oh wait 3 years ago

    • @rimurutempest6768
      @rimurutempest6768 7 місяців тому

      nah I remember this haha, had to revise on it the day before the test at night.

  • @fazlayj
    @fazlayj 11 років тому

    I came to here to learn how how to complete a tree diagram with three branches,not these basic probabilities,anyways thanks.

  • @w31rdTARANtula
    @w31rdTARANtula 11 років тому

    If hes picked a blue sweet and is left with 6/9 how does he have 7 blue sweet the next time he picks a blue.

  • @lucykaluwa925
    @lucykaluwa925 9 років тому

    Thanks

  • @fawadzab
    @fawadzab 12 років тому +1

    hahahaaaa this question came on my paper GCSE unit 1 lool

  • @storm3698
    @storm3698 7 років тому +5

    hang on. No where does it say that he ate the blue sweet first. is it because you are assuming that the chances of him picking a blue sweet first is 70% that we can say that he probably picked a blue first and ate it. Question makes no reference to sweet colour eaten.

    • @clarasolis6709
      @clarasolis6709 7 років тому +2

      storm3698 I'm sure he got that wrong as it's supposed to be 6 over 9 as she ate it. He made a mistake!!

    • @storm3698
      @storm3698 7 років тому

      Clara Solis thanks x

    • @rfbarrow
      @rfbarrow  7 років тому +1

      yes it does

  • @kneve
    @kneve 12 років тому

    Nevermind - I think i get it!

  • @RpitPlays
    @RpitPlays 6 років тому

    o bhai volume itna cum kyon hai? kuch sunayi nahi deraha

  • @danielgorton6374
    @danielgorton6374 Рік тому

    You change the question mid way through and don’t show the answer to first situation. That’s not all that helpful (I know you can back track, but would be helpful to follow through first question before changing)

  • @nuhakhondker9360
    @nuhakhondker9360 6 років тому

    it has bad sound volume

  • @lilzanta
    @lilzanta 6 років тому

    yo

  • @shenghuang8679
    @shenghuang8679 5 років тому

    Huh

  • @masterors
    @masterors 13 років тому

    My teacher disliked this because he can teach better than her :)

  • @adam-azzam
    @adam-azzam 8 років тому

    too quiet

  • @avatarlord1234
    @avatarlord1234 10 років тому

    This was really confusing, i have so many questions for this that dont make sense