Notes. LQ and HQ subsets of K2 (see Table 2); N, N_BL, and N_L are, respectively, the total number of stars, the number of Blazhko stars, and those with P_BL > 100 d; Q_obs^s = (N_BL − N_L)/N, Q_obs = N_BL/N, and Q_und is the underlying rate of all Blazhko stars. The errors represent the standard deviations of the values from the MC simulations. CDFs from K2 and the Galactic Bulge were used to generate (f_m, A_m) for the MC. See Sect. 6.5 for details of the MC simulations.