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life expectancy

life expectancy
预期平均寿命

Definitions

the expected value or probability of occurrence for a specific event. life expectancy the number of years, based on statistical averages, that a given person of a specific age, class, or other demographic variable may be expected to continue living.
n. The number of years that an individual is expected to live as determined by statistics.
n. The number of years that an individual is expected to live as determined by statistics. The number of years that an individual is expected to live as determined by statistics.
the probable number of years a person will live after a given age, as determined by mortality in a specific geographic area. It may be individually qualified by the person's condition or race, sex, age, or other demographic factors. Also called expectation of life.





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