Question

A product has a constant failure rate of 2.2% per year. What is the probability of failure before 6 year?

Answer 1

F(6)=1−e
−0.022×6


Using a calculator, we get:
F
(
6
)
≈
0.121
F(6)≈0.121

Therefore, the probability of failure before 6 years is about 12.1%