## The Basic Practice of Statistics 7th Edition

$b = r\frac{s_{y}}{s_{x}} = (-0.98)\frac{7.0}{14.0} = -0.49$ a = ȳ - bx̄ = 27.2 - (-0.49) (1992) = 1003.28 General least square regression line is: ŷ = a + bx = 1003.28 - 0.49x
$b = r\frac{s_{y}}{s_{x}} = (-0.98)\frac{7.0}{14.0} = -0.49$ a = ȳ - bx̄ = 27.2 - (-0.49) (1992) = 1003.28 General least square regression line is: ŷ = a + bx = 1003.28 - 0.49x
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