Which of the following correctly defines the term 'life expectancy'?

Life expectancy is the average expected length of the life of a person at the time of birth.

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Life expectancy is the average expected length of the life of a person at the time of death.

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Life expectancy is the average expected length of the life of a child at the time of birth.

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Life expectancy is the average expected length of the life of a child at the time of death.

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Solution

The correct option is A Life expectancy is the average expected length of the life of a person at the time of birth.
Human Development Index has three indicators of development, namely life expectancy, education, and per capita income. The UNDP ranks countries according to the parameters.

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