Period and cohort life expectancy

How long do you expect to live? That is a key question which affects financial planning and health decisions. Life expectancy is a statistical measure of how long a person expects to live. That expectancy depends upon demographic factors, like age and sex.

There are two main ways to think about life expectancy:

  • Cohorts: the mean lifespan of people born in specific year (or set of years). This calculation uses…

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