1. A system for identifying a device model exhibiting outlying behavior, the system comprising: a processor; and a memory in operable communication with the processor, wherein the memory contains one or more programming instructions for performing the following: for each of a plurality of devices: receiving, by the processor, a color impression count, a monochrome impression count, and a device model for the device, and determining a proportion of color revenue for the device based on the color impression count and the monochrome impression count, for each device model, determining, by the processor, a distribution of the proportion of color revenue for the one or more devices having the device model, and automatically identifying one or more distributions of the proportion of color revenue exhibiting outlying behavior, wherein each distribution is associated with a device model.