Figure 3: The top panel shows a histogram of chi-square statistics for the 1483 genes eliminated in step 3 of the filtration process employed by Blalock et al. [38], along with the null model χ22(0). No fitted CCS model is shown, as the omnibus null hypothesis is not rejected at any α ≤ 0.25. The bottom panel shows a histogram of the p-values for these same 1483 genes, along with the fitted CB model, and the null model of a uniform distribution.