?Christmas Lights Christmas lights are often designed with a series circuit. This means that when one light burns out the entire string of lights goes
Chapter 5, Problem 16(choose chapter or problem)
Christmas Lights Christmas lights are often designed with a series circuit. This means that when one light burns out the entire string of lights goes black. Suppose that the lights are designed so that the probability a bulb will last 2 years is 0.995. The success or failure of a bulb is independent of the success or failure of other bulbs.
(a) What is the probability that in a string of 100 lights all 100 will last 2 years?
(b) What is the probability that at least one bulb will burn out in 2 years?
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