Question

define
:
(b) Life expectancy​

Answer 1

Explanation:

The term “life expectancy” refers to the number of years a person can expect to live. By definition, life expectancy is based on an estimate of the average age that members of a particular population group will be when they die.

Answer 2

Answer:

here's it

Explanation:

Life expectancy is a statistical measure of the average time an organism is expected to live, based on the year of its birth, its current age, and other demographic factors including biological sex. The most commonly used measure is life expectancy at birth, which can be defined in two ways