As a function of the r‐correlation statistic between J‐band photometry and J‐band seeing, we plot approximate distribution functions (arbitrary units) for identified variables (blue line) and nonvariables (red line) in our ﹩\left|b\right|> 20^{\circ }﹩ sample. Unlike Fig. 15, we group together identified extragalactic sources with the other sources. In green, we plot the estimated probability that observed variability is intrinsic to the source, as opposed to correlated with seeing variations. The different color regions correspond to probabilities >95% (gray; same as Fig. 15), between 5% and 95% (brown), and <5% (white); ﹩r^{*}_{a}﹩ and ﹩r^{*}_{d}﹩ are shown where the probability is 5%. The regions bounded by ﹩\{ r_{a},r_{b}\} ﹩ and {﹩r_{c},r_{d}\} ﹩ (dashed purple vertical lines), correspond to the range of r‐values for which the K‐S test between the populations of variables and nonvariables evaluates to a probability of 99.7%. See § 3.5.1 for discussion.