A cost-of-living survey for various cities in the world was published for 2010 a

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A cost-of-living survey for various cities in the world was published for 2010 and 2011. A regression was run on the ten most expensive and ten least expensive cities in the survey, comparing the 2010 and 2011 cost-of-living indices for these twenty cities. The 2011 indices for the most expensive cities ranged from 137 to 161, and the indices for the least expensive cities ranged from 46 to 62. Complete parts a and b below. Click here for the regression analysis results. a) Sketch what a scatterplot of Index2011 vs. Index2010 is likely to look like. Choose the correct answer below.

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A)

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