Question: Figure A shows a scatterplot for the U.S. population (in millions) from 1850 to 1900. Figure B shows a residual plot of the same data.

Figure A shows a scatterplot for the U.S. population (in millions) from 1850 to 1900. Figure B shows a residual plot of the same data. Give the reasons why the linear model is not appropriate for predicting the population in the year 2020.

Scatterplot 25 20 10 1800 1810 1820 1830 1840 1850 Year Residual Plot 2.0 1.5 1.0 a 0.5 0.0 0.5 1.5 1800 1810 1820 830 840 1850 Year

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