State/province-level distributions of the numbers of cumulative confirmed COVID-19 cases.

The star markers are the empirically estimated probability density P(N) of a state/province to have N cumulative confirmed cases by one day. The red dashed curves and legends are the results of the stretched exponential fits. For ease of comparison, the results of the lognormal fits are presented by blue dashed curves and legends. The values of R (p-value) of the log-likelihood ratio tests are shown as the black text in the bottom left corners of each panel.