Final answer:
Incidence is a statistical measure applied to identify the number of new instances of an event, like receiving a paycheck, which occurs within a specific time period.
Step-by-step explanation:
The concept in question refers to incidence, which is a statistical measure used in fields like epidemiology to identify the number of new instances of a particular event, such as a type of incident or disease, that occurs within a specified period of time. It can be reported in different ways, such as a percentage or rate per a specific number of individuals, to convey the information clearly even when the actual numbers are small. For example, if we consider the event of receiving a paycheck, which might occur bi-weekly, the period is two weeks and the frequency is 26 times per year (assuming bi-weekly paychecks throughout a whole year).