This paper describes some of the most important aspects that characterize the foreign trade of Romania until June 2013. One of the most important conclusions drawn is the fact that significant decreases in volume and value of both import and export were recorded. One key factor identified in the...

The authors analyze the relationships existing between the parameters of the reciprocal lines, defining, determining and interpreting the notions of estimators, regression line slope quotient, free terms of the regression line.