The probability density function (PDF) p(V_kick) (left), and the cumulative distribution function (CDF) F(v_*) (right) of the kick magnitude for representative GW events in GWTC-2. The PDF is constructed by combining the parameter estimation posterior samples for the binary parameters with the fitting formula for the kick. The CDF F(v_*) is computed by integrating p(V_kick) from 0 to v*. Shown in the insets are the PDF and the CDF of GW190814, which has the most precisely inferred kick magnitude and the lowest kick of all GWTC-2 events.