Distributions for the measured relative total matter density RVs 1 + Δ_GRG, obs | 1 + Δ_GRG = 1 + δ and 1 + Δ_RG, obs | 1 + Δ_RG = 1 + δ for an individual giant (top row; solid), and for an individual RG (bottom row; hatched). Fixed voxel method densities (left column; green) are lower than flexible voxel method densities (right column; orange). The MLE-fitted lognormal PDFs (solid curves) demonstrate that the distributions are almost lognormal.