The table shows the life expectancy in years for people born in certain years: Construct a scatter plot of the data, then draw and assess a line that best represents the data; Write an equation in slope-intercept form for the line of fit and intercept the slope and y-intercept; Use the equation to make a conjecture about the life expectancy for a person born in 2020.
Why do we estimate a line of best fit for a scatter plot?
