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Life expectancy

From the July 1995 issue of The Christian Science Journal

What can we expect of life? How long will it be and how good? Are its length and quality determined by genes and the law of averages? A dictionary defines life expectancy as "the statistically probable length of time that a typical individual can be expected to live. " These statistics are the result of actuarial projections and averages based on the year in which a person was born, whether one is female or male, and so on.