$R^2 = \frac{SSREG}{SSTOT}$ or $R^2 = 1-\frac{SSRES}{SSTOT}$
If $X$ is the predictor random variable for science SAT
and $Y$ is the predictor random variable science GPA
given by equation $$\hat Y = -1 + 0.006X$$
and $R^2 = 3$$R^2 = 0.3$
what do we say the relationship between $X$ and $Y$ is in this case given the coefficient of determination?