College entrance examination liberal arts mathematics, help me solve this problem, I don't know at all, what is a linear regression equation? What is linear regression linear equation? The one under the topic Linear regression is one of the statistical analysis methods to determine the quantitative relationship between two or more variables by regression analysis in mathematical statistics, which is widely used. According to the type of relationship between independent variables and dependent variables, analysis can be divided into linear regression analysis and nonlinear regression analysis. If the regression analysis contains only one independent variable and one dependent variable, and the relationship between them can be approximately expressed by a straight line, this regression analysis is called unary linear regression analysis. The simplest correlation between variables is linear correlation. If there is a linear correlation between random variables and variables, then the points (,) obtained from the experimental data will be scattered around a straight line.

In this problem, six points are marked in rectangular coordinate system by drawing, and a straight line connecting two points (1 0) and (2,2) and an approximate straight line where the six points are located are drawn, and the sizes of slopes b and a are compared. B is the slope of the straight line