Probability density functions (PDFs) of the relative total matter density RVs of 260 Local Universe giants (top row), and of 1443 Local Universe RGs (bottom row), determined through the fixed voxel method (left column) and flexible voxel method (right column). These RVs correspond to the density field smoothed to a scale of 2.9 Mpc h⁻¹. We also show PDFs of gamma-distributed RVs with parameters obtained via MLE, both before (solid lines) and after (dash-dotted lines) a heteroskedasticity correction. We warn that these distributions are affected by surface brightness selection, and thus represent known populations only.