Suppose a brand of lightbulbs is normally distributed with a mean life of 1900 hours and a standard deviation of 50 hours. Find the probability that a lightbulb will last between 1825 hours and 1980 hours

asked Feb 23, 2018 163k views

3 votes

5.8k points

Please log in or register to add a comment.

3 votes

I am not sure exactly how to do it but based on my knowledge, I think the answer would be 1/38

6.3k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.4m questions

8.4m answers