What term refers to the average length of life remaining for individuals of a certain age according to mortality tables?

The term that refers to the average length of life remaining for individuals of a certain age according to mortality tables is "life expectancy." Life expectancy is a statistical measure derived from mortality data that estimates how long a person of a specific age is expected to live, taking into account current age-specific mortality rates. It is often used in demographic studies and insurance calculations to assess risk and evaluate premiums.

Understanding life expectancy is crucial in the context of life and health insurance because it helps insurers determine policy terms, benefits, and pricing based on the lifespan expected for different age groups. As populations age or as health standards change, life expectancy figures are updated to reflect these dynamics, enabling better alignment of insurance products with the realities of average life spans.

In contrast, life span refers to the maximum age that a member of a species can reach, life duration is not a standard term in this context, and longevity typically refers to long life but does not denote a statistical measure like life expectancy does.