SOLUTION: A room has 3 lightbulbs. Each one has a 10% probability of burning out within the month. What is the probability that all three will burn out by the end of the month?

Algebra ->  Probability-and-statistics -> SOLUTION: A room has 3 lightbulbs. Each one has a 10% probability of burning out within the month. What is the probability that all three will burn out by the end of the month?      Log On


   

Question 1098111: A room has 3 lightbulbs. Each one has a 10% probability of burning out within the month. What is the probability that all three will burn out by the end of the month?
Answer by ikleyn(52800) About Me  (Show Source):
You can put this solution on YOUR website!
.
These three events are independent, so the probability under the question is

%281%2F10%29%2A%281%2F10%29%2A%281%2F10%29 = 0.1*0.1*0.1= 0.001 = 0.1%.