Probability density function and CDF of the projected angle between the PA of the CH₃OH maser distribution and the outflow axis () (left). Right:Probability distribution function (top panel) and CDF (bottom panel) of the projected angle between the PA of the CH₃OH maser distribution and the linear polarization angles (). In both panels the dashed line is the CDF for random distribution of the corresponding angles, i.e., all angular differences are equally likely. The results of the K–S test are listed in Table 3.