Table 5 Determination coefficients in the quadratic model.

From: Removal of Cr(VI) from aqueous solution using ball mill modified biochar: multivariate modeling, optimization and experimental study

Parameter

Value

Parameter

Value

Std. Dev

3.32

R2

0.9701

Mean

84.67

Adjusted R2

0.9453

C.V. %

3.92

Predicted R2

0.8806

  

Adeq precision

22.7774

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