Question

Year of Birth	Life Expectancy
1930	59.7
1940	62.9
1950	70.2
1965	69.7
1973	71.4
1982	74.5
1987	75
1992	75.7
2010	78.7

As the year of birth increases by one year, life expectancy increases by ____ years?

Answer 1

The statistical software output for this problem is:

Hence,

As the year of birth increases by one year, life expectancy increases by 0.227 years.