Answer:
2.228%
Explanation:
Average life = 2400 hours
So,


An average person listens to music for 1,000 hours in a year
So, An average person listens to music in 3 years=
hours
Now we are supposed to find the probability that the component lasts for more than 3 years



So,P(z<3000 hours or 3 years)=P(z<2)=0.9772
So,P(z>2)=1-0.9772=0.0228 or

Hence the probability that the component lasts for more than 3 years is 2.228%