Table 2.

Surrogate models for sorption activity of activated carbon using Q_max and logP.

Model Type	R²	RMSE	Surrogate Model Form, y=%bound
Linear	0.472	0.282	$y = 0.070 + 0.761 Q_{m a x} + 0.210 l o g P$
Quadratic	0.872	0.139	$\begin{array}{l} y = - 3.480 + 11.714 Q_{m a x} + 7.904 l o g P \\ - 7.044 Q_{m a x}^{2} - 6.188 Q_{m a x} l o g P - 4.787 l o g P^{2} \end{array}$
Signomial Order 1	0.498	0.275	$y = 1.010 Q_{m a x}^{0.574} l o g P^{0.090}$