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10 questions from this quiz
A line approximating linear relationship
Prediction within existing data range
Vertical distance from point to line
Sum of all squared residuals
m=r×sysxm = r \times \frac{s_y}{s_x}m=r×sxsy
c=yˉ−mxˉc = \bar{y} - m\bar{x}c=yˉ−mxˉ
(xˉ,yˉ)(\bar{x}, \bar{y})(xˉ,yˉ)
Between −1-1−1 and +1+1+1
So negatives don't cancel out
Strong positive linear association
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