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?

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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(52802)   (Show Source): You can put this solution on YOUR website!
.
These three events are independent, so the probability under the question is

 = 0.1*0.1*0.1= 0.001 = 0.1%.



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