The Institute for Global Ethics has data which relates its Country Corruption Index (CCI) to the percentage growth of GDP in 118 countries. The regression line (best-fit line) obtained is
GDP growth = 0.74 - 3.46*CCI
Which of the following statements is true?
- The correlation between GDP growth and CCI on the data set is positive but cannot be determined precisely from the information given
- The correlation between GDP growth and CCI on the data set is negative but cannot be determined precisely from the information given
- The correlation between GDP growth and CCI on the data set is 0.74
- The correlation between GDP growth and CCI is 0.74/-3.46= -0.21387