Life expectancy is
A)a theoretically projected length of life based on ideal conditions.
B)the average length of time a person is expected to live.
C)the period of life when an individual is healthiest.
D)a calculation based upon how long a person's relatives lived.

Question

Quizplus · Accepted Answer

Life expectancy refers to the average length of time a person is expected to live, based on factors such as age, gender, and historical mortality rates. It is not a theoretical projection or calculation based on an individual's family history, and it does not refer to a specific period of peak health. Therefore, option B is the most accurate response.

Life Expectancy Is