1990 nearly lies in the middle of the years 1972 and 1997. Since it is given that the amount of milk produced can be modeled using a linear model, I would expect the approximate amount of billions of pounds of milk would be the average of the amount produced for those given years.
Let m = milk produced (in billions of pounds)
\(m\approx\frac{7+8}{2}=\frac{15}{2}=7.5\)
Therefore, the third answer choice is correct.
1990 nearly lies in the middle of the years 1972 and 1997. Since it is given that the amount of milk produced can be modeled using a linear model, I would expect the approximate amount of billions of pounds of milk would be the average of the amount produced for those given years.
Let m = milk produced (in billions of pounds)
\(m\approx\frac{7+8}{2}=\frac{15}{2}=7.5\)
Therefore, the third answer choice is correct.