What life expectancy means?
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.
Which is the best definition of life expectancy?
Life expectancy is the number of years a person would be expected to live, starting from birth (life expectancy at birth) or at age 65 (life expectancy at age 65), based on the mortality statistics for a given observation period.
What do you mean by life expectancy Class 9?
In general, life expectancy can be defined as the average age till which the people of a country are expected to live. Human Development Index. Standard IX Economics.
What is life expectancy at birth class 10?
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.