U.S. Justice Department: Does Neighborhood Watch reduce crime? Neighborhood Watch programs became popular in the 1970s and 1980s; by 2000, roughly 40% of the U.S. residential population was covered by such citizen crime-watching programs.
Definition of actuarial. 1  1 : of or relating to actuaries. 2  2 : relating to statistical calculation especially of life expectancy.
The actuarial value of a health insurance plan has long been used by plan administrators to appraise their companyâs probable outlay on health insurance claims. But the insured view the actuarial value as a measure of the generosity afforded by a health plan.