1. A vehicle comprising: at least one operative sub-system, wherein the at least one operative sub-system includes at least one sensor configured to output one or more sensor signals related to the at least one operative sub-system; and a monitoring system in communication with the at least one operative sub-system, wherein the monitoring system is configured to: (a) correlate the one or more sensor signals with respect to time, (b) compile initial statistics of the one or more sensor signals with respect to a plurality of variables; and (c) correlate the plurality of variables.