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.
What is Actuarial Science? Actuarial science applies mathematical and statistical methods to finance and insurance, particularly to the assessment of risk. Actuarial science includes a number of interrelating disciplines, in particular the mathematics of probability and statistics.