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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5 жыл бұрын
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2 жыл бұрын
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2 жыл бұрын
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@ExamSolutions_Maths
6 жыл бұрын
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2 жыл бұрын
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@SigmaMaleRule69
Жыл бұрын
11 years..
@neevgadkar1038
7 ай бұрын
12 years...@@SigmaMaleRule69
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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!
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7 жыл бұрын
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@ExamSolutions_Maths
4 жыл бұрын
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@ExamSolutions_Maths
10 жыл бұрын
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10 жыл бұрын
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10 жыл бұрын
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@ExamSolutions_Maths
8 жыл бұрын
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Great explanation! Have course work due in soon but didn't understand PMCC but this video helped me a lot!!! THANKS!!!!
@ExamSolutions_Maths
10 жыл бұрын
Good luck with the coursework
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8 жыл бұрын
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8 жыл бұрын
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8 жыл бұрын
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@ExamSolutions_Maths
10 жыл бұрын
Good luck
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@ExamSolutions_Maths
5 жыл бұрын
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@ExamSolutions_Maths
4 жыл бұрын
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@ExamSolutions_Maths
10 жыл бұрын
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7 жыл бұрын
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4 жыл бұрын
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10 жыл бұрын
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4 жыл бұрын
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5 жыл бұрын
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10 жыл бұрын
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8 жыл бұрын
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10 жыл бұрын
Cool
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Thanks
Yes it is
Thanks cause the equation I was on my "Mathematical Studies SL Information Booklet," the equation looked different than the one shown on here
Good
God bless you
Thank you! Since this is a sample correlation, shouldn't we divide by n -1 and not N (which would be for population)?
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@ExamSolutions_Maths
8 жыл бұрын
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@magicalmax1000
8 жыл бұрын
+Jackman1st GCSE? I'm doing this at AS level!
sick me why all squared. thanks a lot for the good explanation :)
muy bien
@TheJBudinas Yes
Cool
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
So so so hepfullll
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?
nice presentation easy to follow, should there of been a plot at x10,y9?
@ExamSolutions_Maths
8 жыл бұрын
+Josh Peacock Thanks, and yes well spotted. Does not alter the answer though.
@katyshardssx Thanks. Pleased to hear that.
Do we need to bother with formulas if we can do it on the casio calculator?
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.
What would r equal if there was a perfect (or near-perfect) straight horizontal line? thanks :)
what does the s at the start stand for?
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 :)
Ok thanks Kitchen main ghusne sb forgett ho gaya Recall karnin Padtti hai Thanks sir
im still confused why we use that equation. what is the equation actually doing and why does it work
Are the formulae for r, Sxy, Sxx and Syy given in the formula book for the Edexcel exam board
@hamidbcu yes
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 ?
@starksenterprises Cheers m8
@omar3211 Yes
Name your date and time!
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Is the PMCC the same as Correlation Coefficient or are they different?
@ExamSolutions_Maths
10 жыл бұрын
They are the same thing
is there a video on coding?
On a calculator: MODE - STAT - A+BX ENTER VALUES AC-SHIFT - REG - R sorted ;)
I need indirect method
i challange you to a math duew
Sorry, not at the moment
turns out they're not in my bloody formula book!...grrrr....thanks anyway
@em8136
4 жыл бұрын
Grr