Skip to main content

Difference between Expectation of life and Life expectancy

expectation of lifethe average number of years of life remaining for a person of a given age based on statistical probability:

  • His expectation of life was substantially less than it would have been if he had not contracted cancer.

life expectancythe number of years an average person can be expected to live based on statistical probability:

  • Life expectancy in the U.S. continues a long-term upward trend.