Observed cumulative distributions of sin i and the associated model distributions assuming isotropic and cone distributions (see Jackson et al. 2010) for the inclination angle. See Table 3 for the (α, λ) parameters used in the cone distributions. The error bars correspond to 1σ limits derived from the random simulations of the theoretical CDFs. To avoid crowding, we show them only for the isotropic distributions because the errors for the cone distributions are very similar.