Histogram associated with the predictions for (blue, green, and red tones, respectively). The true (test) profile is described by Eq. (24)with fixed Ω_c = 0.7 μHz, Ω_e = 0.1 μHz. The light colors represent the histogram obtained when Ω_m = 0.1 μHz, medium colors correspond to Ω_m = 0.4 μHz, and dark colors represent Ω_m = 0.7 μHz. Essentially identical distributions for result, regardless of the choice of Ω_m. While Ω_c and Ω_e are recovered properly, no good prediction for Ω_m can be made.