n a study of pollution in a water stream, the concentration of pollution is measured at 5 different locations. The locations are at different distances to the pollution source. In the table below, these distances and the average pollution are given:                  Distance to pollution source (in km) 2 4 6 8 10 Average concentration 11.5 10.2 10.3 9.68 9.32 The relationship between the variables is modeled by the regression line with equation y=a+bx a) Estimate the equation of the line b) Briefly write a short report of your findings

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