Life expectancy improved dramatically in the 20th century. The table gives the life expectancy at birth (in years) of males born in the United States.

Use a scatter plot to choose an appropriate type of model. Use your model to predict the life span of a male born in the year 2010.

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Life expectancy Birth year 1900 48.3 1910 51.1 1920 55.2 1930 57.4 1940 62.5 1950 65.6 1960 66.6 1970 67.1 70.0 1980 1990 71.8 2000 73.0