Final answer:
Analytical methods are helpful in epidemiology and research, including for maintaining business and insurance. They provide a way to analyze and interpret data in order to understand relationships between variables.
Step-by-step explanation:
In epidemiology, the term 'helpful in epidemiology or research or for maintaining business including insurance' refers to analytical methods. Analytical methods are used to analyze and interpret data in epidemiological studies, helping researchers understand the relationship between exposure and outcome variables. These methods include statistical techniques such as regression analysis, hypothesis testing, and multivariate analysis.