presents the histograms of continuous variables along the main diagonal, revealing a general tendency toward a Gaussian (normal) distribution. Most variables are concentrated around their mean values, reflecting the natural statistical trend associated with material synthesis. As studied by , this normal distribution simplifies statistical analysis, facilitates predictive modeling, reduces errors and bias, and enables clear and reliable interpretations of the data. Notably, very small particle sizes (<2 nm) are rare, suggesting that the synthesis conditions typically do not favor this characteristic.