LIFEEXPECTANCY

Life expectancy

Life expectancy is the expected number of years of life remaining at a given age. It is denoted by <math>e_x</math>, which means the average number of subsequent years of life for someone now aged <math>x</math>, according to a particular mortality experience. Because life expectancy is an average, a particular person may well die many years before or many years after their "expected" survival. The term "maximum life span" has a quite different meaning. The "median life span" is also a different concept although fairly similar to life expectancy numerically in most developed countries.

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life expectancy

Noun

  1. The amount of time one is expected to live.
  2. The amount of time something is expected to last.


The above text is a snippet from Wiktionary: life expectancy
and as such is available under the Creative Commons Attribution/Share-Alike License.

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