QUADRATIC REGRESSION 1) The following table shows the population in a certain country between the years 1880-1980 (img 1) A. Make the scatterplot and propose the approximating curve. B. Find the equation of the least squares parabola that best fits the data C. Calculate the estimated (trend) values for the data indicated in the table and compare them with the true ones. D. Using the equation, estimate the population in 1990 and 2000. E. Using the equation, estimate the population in 1860 and 1870.

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