Answer : Based on given information,

Employed = Population - People who are under 16 or unstitutionalized - People who are not in labor force - Unemployed people

=> Employed = 10,000 - 2,000 - 3,000 - 250

=> Employed = 4,750

Labor force = Employed + Unemployed people

=> Labor force = 4,750 + 250 = 5,000

Unemployment rate = (Number of unempolyed people / Labor force) * 100

=> Unemployment rate = (250 / 5000) * 100

=> Unemployment rate = 5%

Therefore, in Coukouville the unemployment rate is 5%.