$$\text { A regression line was calculated as } y ^ { \prime } = 9.7 - 3.2 x \text {. The slope of this line is } - 3.2 \text {. }$$

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The Answer of $$\text { A regression line was calculated as } y ^ { \prime } = 9.7 - 3.2 x \text {. The slope of this line is } - 3.2 \text {. }$$

$\text { A regression line was calculated as } y ^ { \prime } = 9.7 - 3.2 x \text {. The slope of this line is } - 3.2 \text {. }$