Difficult# Finding the Correlation Coefficient When Given the Variation

APSTAT-RK1AEL

It is determined that the least squares regression line between two variables, $x$ and $y$, is given as:

$$\hat { y } =20000- 0.153x$$

It is also determined that the variation (coefficient of determination) is $57\%$.

Which of the following is the value for the correlation coefficient?