highly significantp ≤ 0.01
For feed, there was a highly significant positive correlation for Cu-Pb (r xy = 0.723) and Zn-Cd (r xy = 0.714) at p ≤ 0.01.
For feed, there was a highly significant positive correlation for Cu-Pb (r xy = 0.723) and Zn-Cd (r xy = 0.714) at p ≤ 0.01.