Number count sample covariance terms from numerical simulations for different redshift settings: undistorted (red lines), RSDs (purple lines), RSDs and small photo-z uncertainty (σ_z0 = 0.005, blue lines), RSDs and large photo-z uncertainty (σ_z0 = 0.01, green lines), and redshift with only large photo-z uncertainty (σ_z0 = 0.01, yellow lines). Solid lines represent the diagonal sample variance, dashed lines are the sample covariance between two adjacent mass bins (first and second) and same redshift bin, and dotted lines are the sample covariance between adjacent redshift bins and same mass bin (first one).