Changchun Sewage Emissions Projections

摘要

Principle Introduction of regression analysis, analysis of the impact factors of sewage emissions, establish the main factors of sewage emissions are non-agricultural population and the Engel coefficient , On historical data basis it establish regression equation. Through the correlation coefficient, the remaining variance and the F-test to determine the optimal linear regression equation, the use of this equation forecast the discharge volume of Changchun City in 2010 and 2015 was 190.919 million cubic meters and 168.877 million cubic meters.