Two-dimensional and one-dimensional probability distributions of the model parameters obtained from the MCMC fittings to the broad emission line profiles with a simple BLR model. The seven model parameters shown here are the total mass log(M_••), BLR size R_BLR, BLR inner radius R_In, β, BLR opening angle θ_o, viewing angle i_BLR, and γ. In the right side panels, the solid and dashed lines indicate the median, 16th, and 84th percentiles of the one-dimensional projected probability distribution function for each model parameter.