In 1960 the life expectancy in the UK was 71 years
In 1975 the life expectancy in the UK was 73 years
Given that x x\,x years is the life expectancy n n\,n years after 1960.
Using a linear model, form an equation linking x x\,x with nnn.
In 2020 the life expectancy in the UK was 81.8 years.
Comment on the suitability of your model in light of this information
