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Pearson's Product Moment Correlation Coefficient - The formula | ExamSolutions

Pearson's Product Moment Correlation Coefficient (PMCC) can be easily evaluated on many scientific calculators but in this video I show you the formula in case this function is not available. The coefficient is given by the letter r and represents the strength of fit of a set of observations on a scatter diagram to a straight line.
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Пікірлер: 148

  • @fatmafaizal07
    @fatmafaizal075 жыл бұрын

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  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    5 жыл бұрын

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    2 жыл бұрын

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    2 жыл бұрын

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  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    This is not generally requested and so it has been left out so far in my videos but I understand your point. A video on this will take me as always approx 3-4 hours to develop, produce and upload. If you wish to make a donation of £30 at least then I am happy to do this for you. Sorry to make a charge but I hope you understand.

  • @DE_BUZZER
    @DE_BUZZER6 жыл бұрын

    Crazy how 6 years after this was uploaded it still helps out people! Thank you so much!

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    6 жыл бұрын

    Thanks and thanks for watching.

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    @iannene750

    2 жыл бұрын

    Also 10 years later😅

  • @SigmaMaleRule69

    @SigmaMaleRule69

    Жыл бұрын

    11 years..

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    7 ай бұрын

    12 years...@@SigmaMaleRule69

  • @AiyJayeMee
    @AiyJayeMee3 жыл бұрын

    this video is an absolute god send, i would’ve never understood my online lectures on my own

  • @svenbenzali2273
    @svenbenzali22739 жыл бұрын

    your voice kinda reminds me of benedict cumberbatch which is awesome im imagining him teaching me right now lmao

  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    Thank you. All the best in your exams

  • @seohyun2011
    @seohyun20115 жыл бұрын

    Thanks that was really helpful I understand it better than my boring teacher

  • @molonate
    @molonate12 жыл бұрын

    I loved this video so much! I struggled to understand the equation the way my professor taught it and this is VERY useful!! Thank you for this! :)

  • @HannibalACP82
    @HannibalACP822 жыл бұрын

    Watching this for one of my classes and I have to say that your video was simple, to the point and easy to understand. Thank you so much!

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    @1esteemed52 жыл бұрын

    mate thank you so much ur an actual legend

  • @starksenterprises
    @starksenterprises13 жыл бұрын

    Amazing. Very well explained example... prob would've passed my test first time round if I had this video prior! Great vid, m8!

  • @WorldsFastestHypnotist
    @WorldsFastestHypnotist2 жыл бұрын

    Thank you!! Thanks to you, I now understand this!!

  • @azsunn
    @azsunn11 жыл бұрын

    Thank you for posting this. You explained this in a way I could understand!

  • @JM-zp4ph
    @JM-zp4ph3 жыл бұрын

    This is exactly what I needed for my report. Thank you. :)

  • @friedrichhoberg9021
    @friedrichhoberg90217 жыл бұрын

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  • @marymary6709
    @marymary67093 жыл бұрын

    11 years ago but still helpful! thanks a lot sir. God bless

  • @jdvp16
    @jdvp167 жыл бұрын

    I actually have to use Pearson's product moment correlation for my thesis, so this has provided some pretty useful information. Thank you so much for putting this up!

  • @franchescaclairevega7714

    @franchescaclairevega7714

    7 жыл бұрын

    yeah me too :D

  • @davidhill8163
    @davidhill8163 Жыл бұрын

    Amazing video, clearly explaining topics I was having such a hard time grasping

  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    Cool. Another life saved. Good luck with the exam.

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    @ashatiwari95843 жыл бұрын

    I can never thank you enough! But still thanks for posting this!♥️

  • @gcwhon
    @gcwhon4 жыл бұрын

    Thank you for your explanation. This has helped me tremendously!

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    4 жыл бұрын

    You're welcome. Thanks for your comment.

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    @KamilKubiak9611 жыл бұрын

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  • @AJLoughlan
    @AJLoughlan10 жыл бұрын

    Have my exam today, exactly what i needed, thanks! :)

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    10 жыл бұрын

    Your welcome. Hope it goes well, good luck.

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    @cocconut2y11 жыл бұрын

    Few hours before my exam, and this video has saved my life. Cheers bro from NZ

  • @jacobligutsilu
    @jacobligutsilu Жыл бұрын

    Very clear and concise explanation 👏👏

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    @betruetoyou2212 жыл бұрын

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    @lauramchugh981010 жыл бұрын

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  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    10 жыл бұрын

    You're welcome

  • @mehDivine
    @mehDivine10 жыл бұрын

    Very useful, will help me with my Stats exam next week! Cheers.

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    10 жыл бұрын

    Good, all the best.

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    @Lillahtay2112 жыл бұрын

    YOU ARE A BLOODY LEGEND!

  • @naturallife1724
    @naturallife17248 жыл бұрын

    Great.....No questions.... clear like fresh water. Thank you sir.

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    8 жыл бұрын

    +Nandana Weerasuriya Good to hear.

  • @jemtv1664
    @jemtv16643 жыл бұрын

    Thank you for sharing this, so comprehensible and smartly explained that even like me who has allergy with numbers can understand it, lol😂

  • @ndumisondlovu3541
    @ndumisondlovu35413 жыл бұрын

    Thank you for the video that was crystal clear...

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    @Hasithalive13 жыл бұрын

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  • @Boomdizzle99
    @Boomdizzle9910 жыл бұрын

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    @laydiiestars12 жыл бұрын

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    @5gururaj58 жыл бұрын

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  • @tks8964
    @tks896410 жыл бұрын

    Great explanation! Have course work due in soon but didn't understand PMCC but this video helped me a lot!!! THANKS!!!!

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    10 жыл бұрын

    Good luck with the coursework

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    @spearmethrough8 жыл бұрын

    im learning statistics in a foreign language, a review through your videos helped me to understand the points i was missing. thank you!

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    8 жыл бұрын

    That's good.

  • @spearmethrough

    @spearmethrough

    8 жыл бұрын

    passed my final with a 95-you rock! thanks again man!

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    8 жыл бұрын

    Excellent, well done.

  • @melastname9601
    @melastname9601 Жыл бұрын

    Why can’t I understand this!! LooooL never mind I just noticed I forgot to put the root. I can’t believe myself 😅😅😅 it took two days and this video to notice my mistake. Thank you sir

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    @taitfelix10 жыл бұрын

    You have saved my maths IB coursework due in two days, thank you

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    10 жыл бұрын

    Good luck

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  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    5 жыл бұрын

    Best wishes from the UK.

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    @yvekay51394 жыл бұрын

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  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    4 жыл бұрын

    I am pleased to hear it helped. Not sure about the fun part though.

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  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    10 жыл бұрын

    That's good. Well done.

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    @abbyedwards67198 жыл бұрын

    I'm doing this for Psychology 2nd year of my degree, I haven't done maths at A level but thank you this was understandable even though I had to stop and pause soo many times because I'm not great at math

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    @abbyedwards6719

    7 жыл бұрын

    Yep

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    @ravinderbisht1904 жыл бұрын

    Thanks ...Love the way you teach

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    4 жыл бұрын

    Thank you for those generous words

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    @Tammzaa10 жыл бұрын

    I think you are very helpful with all your videos, thankyou so much for you help. I have my exam on tuesday and I hope it will goes well.

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    @ExamSolutions_Maths

    10 жыл бұрын

    Good luck.

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    @MrTonypurnell9 жыл бұрын

    Great stuff :-)

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    @humam11694 жыл бұрын

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  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    4 жыл бұрын

    Hopefully it will continue to help in the years to come until I remake it.

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    @sumitsinha60845 жыл бұрын

    Thank-you so much...it really helps

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    5 жыл бұрын

    No problem. Thanks for watching, I am pleased to read that it helped.

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    @sohaibzafar201010 жыл бұрын

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    @ExamSolutions_Maths

    10 жыл бұрын

    Pleased to hear that it helped. Well done

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    @goku18638 жыл бұрын

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  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    8 жыл бұрын

    +Konark Raj Mishra Thanks

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    @rishabhvegeta11 жыл бұрын

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    @nezokal34128 жыл бұрын

    Perfect

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    @tishtosh159310 жыл бұрын

    Thankyou, you have helped so much!

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    10 жыл бұрын

    Cool

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    @Israagroof11 жыл бұрын

    your tutorials helped me a lot in my exams! #thankful

  • @ExamSolutions_Maths
    @ExamSolutions_Maths13 жыл бұрын

    @Hasithalive Thanks - take care

  • @mradulapandey2666
    @mradulapandey2666 Жыл бұрын

    Thanks

  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    Yes it is

  • @PinkCircleO8
    @PinkCircleO811 жыл бұрын

    Thanks cause the equation I was on my "Mathematical Studies SL Information Booklet," the equation looked different than the one shown on here

  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    Good

  • @MultiCesman
    @MultiCesman11 жыл бұрын

    God bless you

  • @MA-vv1yk
    @MA-vv1yk3 жыл бұрын

    Thank you! Since this is a sample correlation, shouldn't we divide by n -1 and not N (which would be for population)?

  • @Jackman1st
    @Jackman1st8 жыл бұрын

    cheers mate/sir you saved me I have a mock GCSE 2 hour stats paper tomorrow and I thought I was gonna flop(I am predicted an A*)

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    8 жыл бұрын

    +Jackman1st Cool. Go get it!

  • @magicalmax1000

    @magicalmax1000

    8 жыл бұрын

    +Jackman1st GCSE? I'm doing this at AS level!

  • @andil.9912
    @andil.99127 жыл бұрын

    sick me why all squared. thanks a lot for the good explanation :)

  • @josedejesusrueda6738
    @josedejesusrueda673812 жыл бұрын

    muy bien

  • @ExamSolutions_Maths
    @ExamSolutions_Maths12 жыл бұрын

    @TheJBudinas Yes

  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    Cool

  • @caeto01
    @caeto019 жыл бұрын

    The increase in the observed grades in math are related in the increase of the observed grades of physics? (which would make total sense) .95

  • @kirangregory179
    @kirangregory1795 жыл бұрын

    So so so hepfullll

  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    Sorry but I don't have a video on this. I must say I have never heard of the coefficient of determination r^2. Perhaps someone else reading this may have an idea?

  • @joshpeacock1523
    @joshpeacock15238 жыл бұрын

    nice presentation easy to follow, should there of been a plot at x10,y9?

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    8 жыл бұрын

    +Josh Peacock Thanks, and yes well spotted. Does not alter the answer though.

  • @ExamSolutions_Maths
    @ExamSolutions_Maths13 жыл бұрын

    @katyshardssx Thanks. Pleased to hear that.

  • @0Kyron0
    @0Kyron08 жыл бұрын

    Do we need to bother with formulas if we can do it on the casio calculator?

  • @PinkCircleO8
    @PinkCircleO811 жыл бұрын

    is this the same thing as the Pearson's product-moment correlation coefficient? I need to know for my IB Math Studies IA cause Chi Square is not going to work with my data.

  • @HeyThereLittleMouse
    @HeyThereLittleMouse12 жыл бұрын

    What would r equal if there was a perfect (or near-perfect) straight horizontal line? thanks :)

  • @dummeytitan8130
    @dummeytitan81305 жыл бұрын

    what does the s at the start stand for?

  • @geass11
    @geass1112 жыл бұрын

    Calculater Way: Mode STAT A+BX (2) Enter Values (X =, Y =) AC Shift Stat (1) REG (7) r (3) = Answer :) Each Line represents a button pressed, my example was done on Casio fx-83ES To restart Mode Comp (1) Done :)

  • @mradulapandey2666
    @mradulapandey2666 Жыл бұрын

    Ok thanks Kitchen main ghusne sb forgett ho gaya Recall karnin Padtti hai Thanks sir

  • @lucas411_
    @lucas411_9 ай бұрын

    im still confused why we use that equation. what is the equation actually doing and why does it work

  • @TheJBudinas
    @TheJBudinas12 жыл бұрын

    Are the formulae for r, Sxy, Sxx and Syy given in the formula book for the Edexcel exam board

  • @ExamSolutions_Maths
    @ExamSolutions_Maths12 жыл бұрын

    @hamidbcu yes

  • @MrAlmanahil
    @MrAlmanahil11 жыл бұрын

    sir , my formula is different from yours i multiplied (n) with xy and and other figure, and you have divided it but in the end the answer is same is it alright ?

  • @ExamSolutions_Maths
    @ExamSolutions_Maths13 жыл бұрын

    @starksenterprises Cheers m8

  • @ExamSolutions_Maths
    @ExamSolutions_Maths12 жыл бұрын

    @omar3211 Yes

  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    Name your date and time!

  • @friedrichhoberg9021
    @friedrichhoberg90217 жыл бұрын

    Are you a chess international master who used to make chess videos under ,the name (king crusher )? Your voice sounds smaller his voice .

  • @lewisdebruinHD
    @lewisdebruinHD10 жыл бұрын

    Is the PMCC the same as Correlation Coefficient or are they different?

  • @ExamSolutions_Maths

    @ExamSolutions_Maths

    10 жыл бұрын

    They are the same thing

  • @jamee.
    @jamee.10 жыл бұрын

    is there a video on coding?

  • @muffinMAN8u
    @muffinMAN8u12 жыл бұрын

    On a calculator: MODE - STAT - A+BX ENTER VALUES AC-SHIFT - REG - R sorted ;)

  • @sehrishwani3044
    @sehrishwani30444 жыл бұрын

    I need indirect method

  • @millzy93
    @millzy9311 жыл бұрын

    i challange you to a math duew

  • @ExamSolutions_Maths
    @ExamSolutions_Maths11 жыл бұрын

    Sorry, not at the moment

  • @squarehead444
    @squarehead44410 жыл бұрын

    turns out they're not in my bloody formula book!...grrrr....thanks anyway

  • @em8136

    @em8136

    4 жыл бұрын

    Grr