A regression study was done for 20 cities with latitude and average May temperature as the explanatory variable and response variable respectively. The latitude is ranged from 26 to 47 degrees and the average May temperature is measured in degrees Fahrenheit. Given that the regression equation is ?̂ = 49.4 − 0.313?. (i) Find the proportion of variation that explained by the average May temperature if the total sum of squares and the error sum of squares are 4436.6 and 1185.8 respectively.

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A: i) proportion of variation = ESSTSS=4436.6 - 1185.84436.6 = 73.2723%

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Q: Listed below are systolic blood pressure measurements (in mm Hg) obtained from the same woman. Find…

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