Model #

Independent variable(s)

Predictive Model

R² value

49.

As

$\widehat{Sb}$ = 0.97 As + 150.72

64.1%

50.

Cd

$\widehat{Sb}$ = 0.96 Cd + 230.08

49.8%

51.

Co

$\widehat{Sb}$ = 1.02 Co + 196.49

59.8%

52.

Cr

$\widehat{Sb}$ = 0.91 Cr + 219.14

55.2%

53.

Fe

$\widehat{Sb}$ = 0.06 Fe + 161.29

51.0%

54.

Pb

$\widehat{Sb}$ = 0.44 Pb + 187.12

18.8%

55.

Tl

$\widehat{Sb}$ = 0.99 Tl + 207.61

55.6%

56.

Co & Fe

$\widehat{Sb}$ = 0.72 Co + 0.03 Fe + 152.54

71.6%