If you could control the experiment in such a way that you could control the sign of cov(x, y ), what type of linear relationship (positive or negative) would you impose between x and y?

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000