If the coefficient of correlation is a positive value, then the slope of the regression line

1. must also be positive

2. can be either negative or positive

3. can be zero

4. None of these answers is correct.

must also be positive

Step-by-step explanation:

The sign of the correlation coefficient indicates whether the fitted line is sloping upwards or downwards, so it should be consistent with the sign of the slope of the fitted line. so if the correlation line is poitive so should the regression line