Question

define life expectancy

fast

Answer 1

LIFE EXPECTANCY: Life expectancy refers to the average years an organism lives is called as Life expectancy. In common words the expected age at an organism survives is called as Life expectancy.

ADDITIONAL INFORMATION:

>> Life expectancy depends upon certain factors.

>> Those factors are health facilities, climatic conditions, genes etc.

>> Japan has the highest life expectancy in the world.

>> Sierra Leone has the lowest life expectancy in the world.

>> The average life expectancy of the world is 70.1 years.

>> Life expectancy is one of the factor measuring the HDI.

Answer 2

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Life expectancy is a statistical measure of the average (see below) 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)