Use the given data to find the equation of the regression line. Examine the scatterplot and identify a characteristic of the data that is ignored by the regression line.   x 12 3 4 9 10 8 7 11 6 13 5   y 13.79 4.32 6.59 13.37 13.81 12.62 11.57 13.96 10.21 13.32 8.56

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