$\left[\begin{array}{ccc}1& & \\ \widehat{{\rho }_w}& 1& \\ \widehat{{\rho }_B}& \widehat{{\rho }_z}& 1\end{array}\right]=\left[\begin{array}{ccc}1& & \\ +0.5056435& 1& \\ -0.5852176& -0.2959115& 1\end{array}\right]$