Calculating R-Squared
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why is it 41/42?? someone explainnnnnn
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how do you do this automatically with excell?
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SEline is just n*VAR(y). Correct?
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When you compute SEline and SEy, I notice you assume that y is dependent on x. Right? Isnt this a fallacy, assuming a dependence in one direction, a causality as opposed to a correlation?
My concern is that, apparently, we dont care about SEx - the squared error from the mean of x? Why is that?
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@CogitoErgoCogitoSum Can r or r^2 act as a "standard deviation" of sorts for making such inferences?
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With what degree of confidence/certainty can you interpolate a value/point? I mean to say, if I were to take a sample or a test, knowing what my x value will be, can I estimate with confidence where the y value might be?
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Someone told me about the area equation. They mentioned Pi R Squared. This is incorrect. Pi R Round. Cake R Squared. Get it right, people!
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@dalcde i miss math with numbers lol
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Take a drink every time he repeats himself!!!
Jaytaxman 11 months ago 3
@norwayte The 12% is unexplained. Real world examples are important here. Suppose x is height of a person and y is weight. Then 88% of the variation in weight can be explained by knowing someone's height. The other 12% is explained by either something else(diet, genetics, etc.), or just randomness (no real cause at all).
BurkeyAcademy 1 year ago 2