Soya sauce is fermented product

Given two lines of regression x+3y=11 and 2x+y=7. Find the coefficient of correlation between x and y.

What is the basis of international trade in the Heckscher-Ohlin model?

Which one of the following is not an assumption of Marshall’s Cardinal Utility Analysis ?

Which of the following four-firm concentration ratios is most consistent with monopolistic competition?

When the slope of average cost is positive then which of the following holds

If r is negative, we know that :

If coefficient of correlation rxy= 1, then