Life Expectancy Definition at Life

Life Expectancy Definition. Definition average number of years that a newborn is expected to live if current mortality rates continue to apply. Life expectancy, estimate of the average number of additional years that a person of a given age can expect to live.

By definition, life expectancy is based on an estimate of the average age that members of a particular population group will be when they die. Life expectancy tells us the average number of years of life a person who has attained a given age can expect to live. The term “life expectancy” refers to the number of years a person can expect to live.

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The length of time that a living thing, especially a human being, is likely to live: Life expectancy is the age a person can expect to live based on the statistical average for an area. Life expectancy definition, the probable number of years remaining in the life of an individual or class of persons determined statistically, affected by such factors as heredity, physical condition, nutrition, and occupation. Associated terms a life table presents a set of tabulations that describe the probability of dying, the death rate and the number of survivors for each age or age group.