Normalized histograms showing the distribution of ratios V∕V_c in the ZAMS derived for the program Be (panels a and b) and Bn (panels c and d) stars. The results shown in panels a and c were obtained with EMMB mass-loss rates, while in panels b and dare for VdKL mass-loss rates. Error bars indicate sampling uncertainties according to the errors associated with the measured V sin i parameters. Fitted Person distributions are superimposed (blue dashed curves) to better perceive the differences in the asymmetries of distributions for each type of stars.