In any given year, a factory has a 20% probability of having an accident. About every how many years might the factory expect to have an accident?

Every 1 year

Every 2 years

Every 5 years

Every 20 years

Question

Mathematics

Bianca

14 October, 11:33

In any given year, a factory has a 20% probability of having an accident. About every how many years might the factory expect to have an accident?

Every 1 year

Every 2 years

Every 5 years

Every 20 years

+2

Answers (1)

Know the Answer?

Jaylen Higgins · Answer 1

Probability of having an accident = 20% o 0.2

Thus,

Expected number of years = 1/probability of accident = 1/0.2 = 5

Hence,

3. Every 5 years is the correct option.

In any given year, a factory has a 20% probability of having an accident. About every how many years might the factory expect to have an accident?Every 1 yearEvery 2 yearsEvery 5 yearsEvery 20 years

In any given year, a factory has a 20% probability of having an accident. About every how many years might the factory expect to have an accident?

Every 1 year

Every 2 years

Every 5 years

Every 20 years