The table gives the average life expectancy, in years, of a child born in the given year:   Year Life expectancy 2005 77.6 2007 78.1 2009 78.5 2011 78.7 2013 78.8   Answer the following questions: Write the equation of the regression line using t = 0 in 2000. Explain the meaning of the slope. Explain the meaning of the vertical intercept. Predict the life expectancy of a child born in 2020?

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