Agriculture. The number of dairy cows on farms in the United States is shown in Tabl...

Agriculture. The number of dairy cows on farms in the United States is shown in Table 4 for selected years since 1950. Let 1940 be year 0.

(A) Find a logarithmic regression model (y = a + b In x) for the data. Estimate (to the nearest thousand) the number of dairy cows in 2020.

(B) Explain why it is not a good idea to let 1950 be year 0.