what do you understand by term life expectancy at birth
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If a child is born today in a country where the life expectancy is 75, they can expect to live until they are 75… right? The statistic “Life expectancy at birth” actually refers to the average number of years a newborn is expected to live if mortality patterns at the time of its birth remain constant in the future.
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Life expectancy is defined statistically as the mean number of years remaining for an individual or a group of people at a given age. ... Moreover, because life expectancy is an average, a particular person may die many years before or many years after the "expected" survival.
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