Fractional rms amplitude of rapid UV variability (s_frac) vs. ratio of hard (2.4−10.0 keV) to total (0.3−10.0 keV) X-ray count rates. Objects with harder X-ray spectra tend to have more intense UV variability. Since rapid variability is a hallmark of accretion, this trend supports our proposition that the hard X-ray emission in WD symbiotics is powered by accretion. V347 Nor was observed with two UV filters, and we plot the fractional variability from each of the observations. Downward arrows indicate upper limits. The average error bar is shown at the bottom-right corner.