1: coefficient divided by standard error equals t-statistical cost equals -56. 43329/3 1。 45720 Adjusted r squared = [1-(n-1) (1-r 2)/(n-k)] For example, the standard error of constant c is equal to 155. 6083/0。 269042 = 578.5438+026438+0438+07 Income coefficient is equal to 0. 063573x 12 .

2. Econometrics is a subject that combines economic theory with mathematical statistics and makes quantitative analysis with actual economic data. The main contents include theoretical econometrics and applied econometrics. Theoretical econometrics mainly studies how to use, transform and develop mathematical statistics methods to make them a special method to measure stochastic economic relations.

3. Applied econometrics is to study the practicability of economic mathematical models or explore empirical economic laws by using econometric methods under the guidance of certain economic theories and based on statistical data reflecting facts.

4. Econometrics is a branch of economics based on mathematical economics and statistics, trying to solve economic problems by combining theoretical quantitative methods and empirical (empirical) quantitative methods.