a,The value for the slope(b)of the regression line is..... B,The value for the y-intercept (a) of the regression line is...... C,The predicted/estimated value for portfolio investment if exchange rate is 18.23 is found to be..... D,The method used in question 3.3 to predict/estimate portfolio investment is extrapolation,true or false...... E,The Pearson correlation coefficient (r) between the two variables is

3. An analyst found that portfolio investment is found to be a very significant driver of the recipient economy. Portfolio invest and exchange rate of South African economy were selected for the study done by this analyst. The analyst had an objective of trying to establish whether exchange rate can predict portfolio investment. Use the following data to construct a least squares regression line to predict portfolio investment. Exchange Portfolio rate investment 16.580 57.200 16.100 59.300 15.710 60.020 15.6GO 62.030 11 080 60.230 10 650 70.020 8.640 75.230 8.710 76.620 15.770 67.010 16.860 67.780 17.020 88.080 17.820 80,01 16.250 96.720 9.130 99.690 9.320 102.020 16.860 110.03