Linear regression of x on y [IB Maths AA SL/HL]

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We're so excited to be able to share our exams with you!

Cheers, Mitch
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Sir you are humour 100 i love you can u make more nice jokes my life is the biggest joke for me rn so pls help me cope harder i have baboon mentality

samved
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just a question for the last one to find point P. If we equate both functions to each other can we find the X value and then through substitution we find the Y value? Also would that be considered the mean?

danieltannir
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Hi Mitch. Dumb question but for L2 you said it's x=1.02x - 0.648. Is it really that? or is it x=1.02y-0.648. dumb question but I have to be sure sure.

DisneyPlayhousetv
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I am so confused. I just graphed both your lines on DESMOS. they do not intersect at the (mean x, mean y) point. The intersect at ( 3.29, 3.86) why is it not the mean point???

nanhunter