Figure 1:
Left: Cumulative distribution of Android application prices. The y-axis starts at 60%, and we cut off the distribution at 98.8% probability mass.
Right: Average Android rating scores against the log of the total number of ratings. Each dot corresponds to a single application. We used a logarithmic scale for the number of user ratings due to its large dynamic range, and we discarded all applications with 0 ratings. The distribution of average ratings and number of ratings are next to each respective axis.