Question

An economist is studying the job market in Denver area neighborhoods. Let x represent the total number of jobs in a given nei
(b) Verify the given sums Ex, Xy, Ex. 2y. Exy, and the value of the sample correlation coefficient r. (Round your value for r


10 20 30 40 50 60 10 20 30 40 50 60 (e) Find the value of the coefficient of determination . What percentage of the variation
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Answer #1

mi 1x* x * x сч, o w Pof |22 105 2809 318 28 50 x 4 +%Ч 2500 Чо чо 45 208 3 6 2 s 289 232 4 169 25 112-р . іх 208 25 - 28 waz Ý - 68 - 467 -0.148 x 34567 = 4167–5.131 E-0.461 r2 = 0.67 explained = 67% an explained = 33% . when X= 43 ŷ -0.461 +0.148

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