Richard Price, 1723-1791

Northampton Life Table

Life Table columns

m(x) Age-specific death rate (deaths at age x over population aged x)

q(x)Proportion alive at the beginning of the age dying before they reach the next age

l(x)In a hypothetical population, number alive at the beginning of the age group

d(x) Number dying in age group

L(x) Number of years lived by persons this age

T(x) Number of years lived at this age and all older ages

e(x) Average years remaining at age x