Which statement about life expectancy is true? 1. Your life expectancy decreases
ID: 3146927 • Letter: W
Question
Which statement about life expectancy is true?
1. Your life expectancy decreases as you get older.
2. Everyone in the same country has the same life expectancy.
3. Your life expectancy tells you how long you personally should expect to live.
Choose the correct answer below.
A.
Statement 1 is true because as you get older, the total number of people that have died has increased.
B.
Statement 1 is true because life expectancy is the number of additional years a person of a given age can expect to live on average.
C.
Statement 3 is true because medical science has decreased over the years.
D.
Statement 3 is true because life expectancy is always calculated for individuals.
E.
Statement 2 is true because males and females always have the same life expectancy.
F.
Statement 2 is true because they are all from the same country.
Explanation / Answer
The statement B and D are correct.
Life expectancy is defined for an individual, and is a measure of how much time an individual is expected to live, based on year of birth, current age and other factors like sex, country etc.
As the age increases, i.e. person gets older, his life expectancy decreases. This is because the expected life of an individual with common factors is constant and as age increases, life expectancy decreases.
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