School of Mathematics and Statistics Chuxiong Normal University Chuxiong 675000 China;
School of Mathematics and Statistics Chuxiong Normal University Chuxiong 675000 China;
School of Mathematics and Statistics Chuxiong Normal University Chuxiong 675000 China;
School of Mathematics and Statistics Chuxiong Normal University Chuxiong 675000 China;
Financial Revenue; Housing Sales Price; Correlation Analysis; Multiple Linear Regression Model;