Intro to the Normal Distribution and how to Calculate Probability

Learn all about the normal distribution including the mean and standard deviation, and then how to use those 2 parameters to calculate probability using the Z-transformation.
0:27 - Introduction to the Normal Distribution
1:40 - Understanding the Mean Value (parameter #1)
2:58 - Explaining Standard Deviation (parameter #2)
4:17 - Calculating Probability using the Z-Transformation (Example)
7:55 - Common Z-Scores and Probability using the Normal Probability Table
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Пікірлер: 43

  • @joub5
    @joub55 ай бұрын

    You really brooked this down to a level where I could see how it all worked and came together. Thank you.

  • @haou129
    @haou1292 жыл бұрын

    Man. you are the best when it come to explaining things. Thank you very much

  • @CQEAcademy

    @CQEAcademy

    2 жыл бұрын

    Thanks!!!! I enjoy teaching, and I especially enjoy helping people like you learn and grow!

  • @nicolasbarceloni3861
    @nicolasbarceloni38613 жыл бұрын

    I am prepping for my first Quality Engineer job position. Your videos have been super helpful and clear! Really appreciate the help!

  • @CQEAcademy

    @CQEAcademy

    3 жыл бұрын

    Hey Nicolas, thanks for the feedback, I'm glad you're enjoying the videos!!!

  • @uthirapathi4453
    @uthirapathi44533 ай бұрын

    You've enabled my brain to understand the logic without memorizing ❤️

  • @omid4380
    @omid43802 жыл бұрын

    Perfectly explained! Thanks a billion.

  • @CQEAcademy

    @CQEAcademy

    2 жыл бұрын

    Thanks!

  • @karlayanezsabido6227
    @karlayanezsabido62272 жыл бұрын

    I have to mention that your videos really explains how to get the Z value thanks

  • @CQEAcademy

    @CQEAcademy

    2 жыл бұрын

    Awesome, thanks Karla!!

  • @airlanggak5391
    @airlanggak53912 жыл бұрын

    really appreciate your efforts! thanks so much!

  • @CQEAcademy

    @CQEAcademy

    2 жыл бұрын

    Glad you like them!

  • @aruljoseph6894
    @aruljoseph68942 жыл бұрын

    Thanks for your detailed video clip!!

  • @CQEAcademy

    @CQEAcademy

    2 жыл бұрын

    You're welcome Arul!

  • @JasonStern1
    @JasonStern14 ай бұрын

    Excellent. Excellent. Excellent.

  • @jagdishbhatt2788
    @jagdishbhatt27882 жыл бұрын

    awesome presentation

  • @CQEAcademy

    @CQEAcademy

    2 жыл бұрын

    Thanks Jagdish, i appreciate the compliment!

  • @josephmarshallandrada5404
    @josephmarshallandrada5404 Жыл бұрын

    Thank you sir

  • @essqa226
    @essqa226 Жыл бұрын

    APPRECIATE IT

  • @garima1928
    @garima19282 жыл бұрын

    Best explained. 😀

  • @andyrobertson566

    @andyrobertson566

    2 жыл бұрын

    Thanks Garima!!

  • @karlayanezsabido6227
    @karlayanezsabido62272 жыл бұрын

    Thanks great refresh any six sigma book you recommend for someone who wants to get green belt certification

  • @davechennault8968

    @davechennault8968

    Жыл бұрын

    Lean Six Sigma Pocket Toolbox by Michael George is a good cost effective start. Doesn't go too deep but gives a decent overview and reasonable detail on on a lot of topics.

  • @felixmutandi4753
    @felixmutandi4753 Жыл бұрын

    Hello Andy, thanks for sharing, i would like if you can explain to us if on the same question (6:24) the question is what percentage of test takers gets a score more than 73 and 84?

  • @CQEAcademy

    @CQEAcademy

    Жыл бұрын

    Hey Felix! Do you mean between 73 and 84? A score greater than 73 would be 93.3%. A score greater than 84% would be 37.1%

  • @felixmutandi4753

    @felixmutandi4753

    Жыл бұрын

    thanks @@CQEAcademy

  • @CQEAcademy

    @CQEAcademy

    Жыл бұрын

    @@felixmutandi4753 You're welcome!

  • @thamizhan2009
    @thamizhan2009 Жыл бұрын

    if you have a narrow range of tolerance and if the part dimensions are on the maximum side of specificaiton how could you maintain the cpk value greater than 2

  • @CQEAcademy

    @CQEAcademy

    Жыл бұрын

    Hey there! Okay, so the first thing I would do is to try and move the dimension away from the maximum side of the specification. Centering up your dimension in between your tolerances will improve capability, and then the next thing I would do is to reduce the natural process variation for that component. To be honest, a CPK greater than 2, is hard to achieve, so best of luck!

  • @vivicristina5304
    @vivicristina530411 ай бұрын

    Top

  • @richardlim6436
    @richardlim64362 жыл бұрын

    🙏🏻👍🏻

  • @CQEAcademy

    @CQEAcademy

    2 жыл бұрын

    Richard!!! Glad you like it!! -Andy

  • @leoeveee
    @leoeveee2 жыл бұрын

    Isn't it 6 positive st. dev on right and 6 negative on left rather than 3 left and right?

  • @andyrobertson566

    @andyrobertson566

    2 жыл бұрын

    Hey There, can you clarify your question? Is there a timestamp in the video that you're thinking about?

  • @leoeveee

    @leoeveee

    2 жыл бұрын

    @@andyrobertson566 At 8:17, when we are talking about +/- std dev, I understand, in actual it is 6 S.D on right and 6 on left, not 3 on either side.

  • @andyrobertson566

    @andyrobertson566

    2 жыл бұрын

    Hey @@leoeveee , I think you might be confusing probability with six sigma. So when you achieve a six sigma process, you capture +/- 6standard deviations on either side of the mean, and this captures like 99.999997% of the distribution. In that example at 8:17, I'm simply using the normal probability tables at +/- 3 standard deviations, which captures 99.7% of the distribution.

  • @leoeveee

    @leoeveee

    2 жыл бұрын

    @@andyrobertson566 Thanks for explaining. Love your videos!

  • @MS-be9wv
    @MS-be9wv Жыл бұрын

    i like ur video and presenting but I do not get the smooth flow of information that I got fron ur video about reliability

  • @CQEAcademy

    @CQEAcademy

    Жыл бұрын

    Hey There!!! That's honestly some fair and constructive feedback! This is a relatively older video of mine, and over time I"ve improved my delivery when training, and at some point I should probably re-shoot these lectures so that they better reflect my training skills

  • @MS-be9wv

    @MS-be9wv

    Жыл бұрын

    @@CQEAcademy really you are prefect trainer, and it will be sooo helpful if you make a content from the beginning, the history of the statistics and the need for each distribution and probability method, because you are one of those who have an amazing mind to speak up about these, not just mentioned the method with examples without how

  • @CQEAcademy

    @CQEAcademy

    Жыл бұрын

    @@MS-be9wv Thanks so much, I appreciate that feedback, and honestly, that's exactly what my course, The CQE Master Class, (cqeacademy.teachable.com/p/cqe-certification-in-6-months) is all about! I cover all of the aspects of the entire CQE body of knowledge from start to finish!

  • @CQEAcademy

    @CQEAcademy

    Жыл бұрын

    @@MS-be9wv Thanks so much for that awesome feedback, and to be honest, that's what my course, The CQE Master Class (cqeacademy.teachable.com/p/cqe-certification-in-6-months), is all about. We cover every single topic in the CQE Body of knowledge from start to finish!

  • @papichapo4939
    @papichapo49398 ай бұрын

    Im getting a psycology degree... Why math? Brain don't math. Brain talk to people. Talk good.