Continuity Corrections | ExamSolutions

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  • Опубликовано: 17 ноя 2024

Комментарии • 94

  • @hsstudykaola2459
    @hsstudykaola2459 3 года назад +8

    I watched multiple videos on this and I didn't understand when it was necessary to use the continuity correction and when not.. This video explains it the best!!! The internet is privileged to have this channel! Exam saver!!!!!

  • @silakhan9199
    @silakhan9199 10 лет назад +32

    my teacher explained this to me many times but i did not understand. u really make maths easy, thank u :)

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  10 лет назад +12

      Thanks, that's the aim. Get rid of the mystery

    • @tristianzane1010
      @tristianzane1010 3 года назад

      a tip : you can watch movies on flixzone. Been using it for watching a lot of movies during the lockdown.

    • @willieronald7103
      @willieronald7103 3 года назад

      @Tristian Zane yup, have been using flixzone for years myself =)

    • @naheenisapoet69
      @naheenisapoet69 3 года назад

      @@tristianzane1010 sponsor eh?

    • @dasepticeye6741
      @dasepticeye6741 Год назад

      hows life goin

  • @iris.y8762
    @iris.y8762 4 года назад +4

    much easier to understand with graph, thanks a lot!

  • @DHDH_DH
    @DHDH_DH 11 месяцев назад

    I watched a couple of videos for this topic and only your video explains everything clearly. You have the super powers to get points across. Saver indeed!!!

  • @Novalax
    @Novalax 10 лет назад +12

    This was so much better than my prof's explanation. Thank you!

  • @vikeshpatel1764
    @vikeshpatel1764 Год назад

    This guy is a lifesaver! I don't know how to thank you enough.

  • @simplexsettlings9361
    @simplexsettlings9361 3 года назад

    You are a blessing to many. Thank you so much. Love from Africa. Zimbabwe and Mozambique.

  • @benphua
    @benphua 5 лет назад +6

    Thank you so much, I really want to pick up statistics but it can be so overwhelming, it is so great to have a source of truth, this comprehensive, explained so well, available freely online. You sir are a hero in my book.

  • @cindywang8852
    @cindywang8852 2 года назад

    Very clear step-by-step explanation. Thanks for the video!

  • @beboshi69
    @beboshi69 8 лет назад +1

    Thankyou a lot. Got full UMS last year in Maths thanks to you, hope I can get an A* too.

  • @TheGheezoinky
    @TheGheezoinky 7 лет назад

    I could just not visualise Continuity Correction at all. Finally you made it so simple. Thank you so much, Cheers!

  • @franciscodanielquiroz9904
    @franciscodanielquiroz9904 3 года назад

    This is exactly what I have been looking for in the last two months. The thing is that I am making a project about an inventory model called “Fixed period” where one of the assumptions is that my demand has a normal distribution, and since I have the 365 observations of the same object, when I make the histogram, it looks like a Gaussian Bell, so I was so confused, because my Random Variable is discrete but the Normal disteibution is continuous, so I was wondering: how can I treat a discrete distribution with the normal distribution? So, this is the perfect answer to my question: using continuity corrections. Thanks a lot!

  • @ct8463
    @ct8463 Год назад

    Very good explanation. Thank you!

  • @plantastica4622
    @plantastica4622 11 лет назад +1

    Wow!! Finally understood the "include the value" vs. "not include the value." I am not even done with the video. Thank you. Do you have a name? I am sure you do.

  • @piano-fe4bv
    @piano-fe4bv 4 года назад

    Your explanations make so much sense!! Thank you!

  • @gauravvasnani2031
    @gauravvasnani2031 4 года назад +1

    Wonderful video! Helped me understand the concept clearly/

  • @khushi96able
    @khushi96able 11 лет назад +1

    Thank youuu so much! I understand this so much better now! :)
    13 minutes well-spent!

  • @frazerwilde2646
    @frazerwilde2646 5 лет назад

    thank you so much, just watched all your videos for Unit 4 a-level maths for my exam in 7 hours on 2x speed, really helpful to recap the day before my exam :)

  • @ExamSolutions_Maths
    @ExamSolutions_Maths  11 лет назад

    Yes. You always use it if you are approximating the Binomial or Poisson distributions to a Normal.

  • @ExamSolutions_Maths
    @ExamSolutions_Maths  11 лет назад +1

    It can vary depending on what text book you are looking at, and what exam board / exam question you may be doing. In my experience I have come across a wide range of values.

  • @robinchia4473
    @robinchia4473 6 лет назад

    Absolutely brilliant!!!! You're a lifesaver!

  • @fabrizioj.contrerastay9270
    @fabrizioj.contrerastay9270 2 года назад

    Thank you, that was simple to understand. Now back on studying for tomorrow xd.

  • @EDGEFEDZ7
    @EDGEFEDZ7 7 лет назад

    Great explanation! Thank you for your work and insight.

  • @blupelican3476
    @blupelican3476 4 года назад

    Omg u are so good sir. Thank you so much. I understand the whole concept❤️❤️

  • @twfcp1kelvin622
    @twfcp1kelvin622 Год назад

    thx for explaining!

  • @dreamingqq5078
    @dreamingqq5078 5 лет назад +1

    thank you sooooo much for this video! It was so helpful!

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  5 лет назад

      Thank you for watching and pleased to hear it helped. Best wishes.

  • @paralyzedfruitcake
    @paralyzedfruitcake 11 лет назад

    If you had to use a continuity correction, would you then use the Normal Distribution to approximate the Binomial/Poisson Distribution?

  • @malteeaser101
    @malteeaser101 4 года назад

    Does it have to be binomial or Poisson? Can it just be any discrete distribution that looks normal?

  • @longshot-focusgroup9429
    @longshot-focusgroup9429 7 лет назад

    Thank you for explaining this to me. But I was always wondering why they put boxes around the exact value instead of putting boxs between two exact values (say putting box between 27 and 28 for area of probability of 27 and so on). Is it for better approximation purposes?

  • @naheenisapoet69
    @naheenisapoet69 3 года назад

    I was wondering will the corner of the box poking out of the curve be included for p(x=33) ?

  • @RealBoiJare
    @RealBoiJare 11 лет назад

    Excellent help, thanks!

  • @AmIWhatIAm
    @AmIWhatIAm Год назад

    Thank you sir!

  • @pianellrielly9803
    @pianellrielly9803 2 года назад

    Thanks so much, this is the best!

  • @thesparklerspamman
    @thesparklerspamman 7 лет назад

    Very helpful, thank you.

  • @berkeayrancioglu4570
    @berkeayrancioglu4570 7 лет назад

    Very helpful, thank you!

  • @thies2us
    @thies2us 10 лет назад

    great explanation

  • @JuiceBoxBoiii
    @JuiceBoxBoiii 7 лет назад

    This is great
    Thank you very much

  • @ExamSolutions_Maths
    @ExamSolutions_Maths  11 лет назад

    Yes - Stuart. Check out my website for further details.

  • @tangdaniel3434
    @tangdaniel3434 10 лет назад

    great tutorial!!!!!!!

  • @TessaAvonlea
    @TessaAvonlea 9 лет назад

    Fantastic. Thank you.

  • @abhiramiabhayan8957
    @abhiramiabhayan8957 Год назад

    you da real homie

  • @nourashraf180
    @nourashraf180 2 года назад

    thank you

  • @thewreckedup
    @thewreckedup 11 лет назад

    In the Normal approximation to the Poisson, Lambda should be greater than 15, not 20. (general rule)
    Cheers

  • @abdullahkhan3796
    @abdullahkhan3796 7 лет назад

    Thank you for this!!

  • @yangyichen3922
    @yangyichen3922 3 года назад

    British accent is always so charming :)

  • @AaronANZ
    @AaronANZ 11 лет назад

    so useful thnks so much

  • @leonaasgarpour9866
    @leonaasgarpour9866 7 лет назад

    Thank you!

  • @Laughtel-xo8nk
    @Laughtel-xo8nk 8 лет назад

    when u do hypothesis testing do you have to apply continuity correction even if X~Po (7)?

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  8 лет назад

      +Rabia Maqsood Yes, if you ever approximate it to a continuous distribution

  • @plantastica4622
    @plantastica4622 11 лет назад

    Stuart can you send me you website link? Thanks.

  • @xlaunamx
    @xlaunamx 8 лет назад

    Did I mention how awesome you are? Thanks!

  • @whatever94ful
    @whatever94ful 11 лет назад +1

    Thank you soo much :)

  • @reinaldymaslim
    @reinaldymaslim 10 лет назад

    Do we need to apply the continuity correction for 0?

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  10 лет назад +1

      Does seem a bit pointless as it would be easy to work out without an approximation. I have never come across the need for it but if i had to I would use a continuity correction from -0.5 to 0.5

  • @moshesimon
    @moshesimon 9 лет назад +2

    The Edexcel Pearson S2 books gives to "simple rules for continuity correction:
    1)first write your probability using « or ».
    2)for P(x«n) you approximate by P(y

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  9 лет назад +1

      Moshe Simon It's not wrong, that's what I am doing.

    • @Saxena981
      @Saxena981 7 лет назад +1

      For your second last example, shouldn't it be P(X≥ 30.5) ?

    • @Karaamjeet
      @Karaamjeet 6 лет назад

      ^^

  • @luckyim6504
    @luckyim6504 8 лет назад

    oh, that's mean we only use continuity correction when the question changes from bionimal to continuous????
    how about the question that given X~N(mean, variance). then do we still use the continuity correction????

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  8 лет назад

      No as this is a continuous distribution.

    • @luckyim6504
      @luckyim6504 8 лет назад

      +ExamSolutions thx help alot

    • @luckyim6504
      @luckyim6504 8 лет назад

      +ExamSolutions waiiitt.. how do we do the continuity correction when the random variable X is P(X=A)? Is it already done as we expand this probability into P(X

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  8 лет назад

      Yes, you can do it that way.

    • @luckyim6504
      @luckyim6504 8 лет назад

      +ExamSolutions thank you do mucj

  • @virtuousjoffrey8022
    @virtuousjoffrey8022 10 лет назад +1

    Good stuff
    - Fellow Math Whiz

  • @ExamSolutions_Maths
    @ExamSolutions_Maths  11 лет назад

    Pleasure

  • @ExamSolutions_Maths
    @ExamSolutions_Maths  11 лет назад

    I cannot write it in a RUclips coment but you can see it when you play a video at the start or at the very end.

  • @alecmcehinny4510
    @alecmcehinny4510 5 лет назад

    You're the best!

  • @paralyzedfruitcake
    @paralyzedfruitcake 11 лет назад

    Thanks.

  • @mahe4102
    @mahe4102 9 лет назад

    For P(X>28) why isn't the continuity correction P(X≥ 28.5) ?
    Because including 28.5 doesn't round it to 28, right? So why is it ">28.5"?
    And similarly with P(X≥ 31) --------> P(X≥ 30.5)?
    Someone help me please! =)

    • @SharkKingSeries
      @SharkKingSeries 9 лет назад

      It depends on the sign,not the number.Consider x as a value:
      P(X>x) it is x+0.5
      P(X=x) it is x-0.5
      P(X

    • @mahe4102
      @mahe4102 9 лет назад

      So basically the continuity correction will only have ">" or "

    • @SharkKingSeries
      @SharkKingSeries 9 лет назад

      mahela 27 I was using iPad and it applies to all of them,including the equal to sign.

  • @mdaraphiri6767
    @mdaraphiri6767 8 лет назад +1

    is it wrong in your example if l say p(X

    • @DedziBlud
      @DedziBlud 7 лет назад +1

      a continuous distribution cannot equal a given amount hence why its continuous

    • @TheSunshineRequiem
      @TheSunshineRequiem 6 лет назад

      @@DedziBlud wrong, for a continuous distribution, they are the same thing

  • @thewreckedup
    @thewreckedup 11 лет назад

    Oh then you must be right. :)

  • @arunodhinduwara4646
    @arunodhinduwara4646 3 года назад

    ❤️

  • @azehnuuuuu1846
    @azehnuuuuu1846 7 лет назад

    dab

  • @peaceandloveonthisplanetea6564

    THANK YOU!