Distribution of E(B − V) for the uniform (green histogram) and the SDSS-matched samples (red histogram) of model galaxies. With blue color is the nebular E(B − V) distribution based on the Balmer decrement for sources in the SDSS spectroscopic MPA-JHU catalog considering only star-forming galaxies with E(B − V)/E(B − V)_err > 3. The ordinate corresponds to density which is equal to the ratio of the count of each bin to the total number of counts multiplied by the bin width with the integral of the area under the histogram being equal to one.