Russia is classified as a high income economy by the World Bank and is a member of the BRICS (Brazil, Russia, India, China, and South Africa).The BRICS as a group of nations touted by the World Bank and the IMF as the next group of global superpowers with the potential to surpass existing economic champions.ussia is classified as a high income economy by the World Bank and is a member of the BRICS (Brazil, Russia, India, China, and South Africa).
The value of the intercept, a, anchors the scatterplotâs regression line relative to the values of X and Y (and their coordinates) for the problem at hand. Oftentimes the intercept is a mathematical abstraction but it serves a function of adjusting predicted values of Y relative to the plot.
In this case, the intercept is the unweighted mean of the individual group means. The unstandardized regression coefficient represents the difference between the unweighted mean of the means of one group (A) and the unweighted mean of another group (B), where A and B are two sets of groups in the contrast.