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Percentage of the variation related issues

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Reference no: EM13801302

1.Suppose that for a given data set, s2x=440,s2y=820,r=0.35,n=7

Then the regression standard error is:

2.Suppose that a regression yields the following sum of squares: Σ(yi-y¯)2=200, Σ(yi-yˆi)2=90, Σ(yˆi-y¯)2=110

Then the percentage of the variation in y that is explained by the variation in x is:

Reference no: EM13801302

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