Question

What is life expectancy?

• A. The approximate age of a number individuals
• B. The approximate number of death of a number individuals
• C. The approximate age of death of a number of individuals
• D. None of the above

Answer 1

Answer: (C)

The approximate age of death of a number of individuals

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 gender. The most commonly used measure is life expectancy at birth (LEB), which can be defined in two ways.