Jisho

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Noun
1. life expectancy
Wikipedia definition
2. Life expectancyLife expectancy is the expected (in the statistical sense) number of years of life remaining at a given age. It is denoted by ex, which means the average number of subsequent years of life for someone now aged x, according to a particular mortality experience. (In technical literature, this symbol means the average number of complete years of life remaining, excluding fractions of a year.
Read “Life expectancy” on English Wikipedia
Read “平均余命” on Japanese Wikipedia
Read “Life expectancy” on DBpedia

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