Fig. (7) Effects of test results on diagnostic uncertainty. Uncertainty (entropy) associated with the uniform pre-TP distribution P from Fig. (6C), plotted as a function of the LR⁽⁺⁾. Values on the y-axes are shown without magnitude to emphasize the qualitative behavior of these uncertainty measure. The subplots show: (A) the range uncertainty, U_R = H(P) , representing uncertainty about the pre-TP value; (B) the disease uncertainty, UD = H(D | P) , representing the uncertainty inherent in not knowing the true disease state uncertainty; and (C) the total uncertaintyU_T , the sum of the other two components U_T =U_R + UD . For the range uncertainty, an additional curve is shown for comparison (light gray line), representing the entropy for a distribution with the same width or range as the post-TP distribution, but with a uniform distribution over this range (rather than a warped shape).