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Correlation Coefficient

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Carry out a least square line fit to these points: (x, y) = (1,4) (2,5) (3,7) (4,8). Calculate the covariance and correlation coefficient

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Carry out a least square line fit to these points: (x, y) = (1,4) (2,5) (3,7) (4,8). Calculate the covariance and correlation coefficient

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Please refer to the attachment for calculation.
Calculate the mean of X and Y: Xm and Ym
VAR(X) ...

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