Coverage of the predicted uncertainties, shown as absolute values (top) and relative values (bottom) to expectations (blue dashed lines). The network-predicted uncertainties σ of the test set were scaled such that roughly 68.3%, 95.4%, and 99.7% of the true values η^tr are contained in the 1σ (dark gray bar), 2σ (median gray bar), and 3σ width (light gray bar) ranges of a Gaussian distribution centered at the predicted median values η^pred. With this scaling, we can indeed interpret the predicted uncertainties of each individual parameter as the width of a Gaussian distribution. We additionally show the mean of all seven σ values, which are, respectively, 68.05%, 95.72%, and 99.46%, in red for comparison.