The estimates that result from the regression of maize production onto population and precipitation give Equation 14. The variability of maize production is explained by both population and precipitation at about 56%, which is 6% less than the explanation from population alone (≈50%) and 19% more than the explanation provided by precipitation alone (≈37%). The population estimate (1) is statistically significant with a p-value of 0.00778. The precipitation estimate (2) is not statistically significant with a p-value of 0.08307 (> 0.05). The model predicting Maize onto population and precipitation is statistically significant with a p-value of 0.0002088. The RMSE was 9.094947 x 10-13.