Bivariate regression and correlation statistic

Bivariate regression and correlation statistic

1. correlation analysis

   • measueres the closeness of the relationship between two or more variables considering the joint variation of the two measurements, neither of which is subject to restrition by the experimenter.
     • server for
       • statistical technique used to measure the closeness of the linear relationship between two or more variables on a scale of interval

2. bivariate statiscal measure

   • coefficient of r2 termination
   • simple linear correlation
   • positive correlation and negative correlation
   • diagrams of dispersion
   • Regression
   • regression simple
   • regression multiple

3. regreesion problem

   • homogeneous
   • linear relationship
   • correlations errors

4. linear regression

   • coefficient of linear person relationship if the poins have a tendency to be arraged in line
   • It is useful to determine if there is a linear relationship between two variables but it is not useful for (quadratic, logarithmic
   • It has the sign of Sxy
   • used to
     • statistical technique used to derive an equation that relates a criterion variable to one or more