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 August 7th, 2017, 05:08 PM #1 Member   Joined: Apr 2017 From: PA Posts: 45 Thanks: 0 What is the expected time for the first of these bulbs to burn out? A company buys 100 lightbulbs, each of which has an exponential lifetime of 1000 hours. What is the expected time for the first of these bulbs to burn out? For this, I divided 1000/100 to get 10 hours, is this correct?
 August 7th, 2017, 07:25 PM #2 Senior Member     Joined: Sep 2015 From: USA Posts: 2,174 Thanks: 1143 Can you explain why you did this. I believe it is the correct answer but a fair bit of work was needed to show this. Were you given some formula?

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