Solved: A lamp has three bulbs, each of a type with average lifetime 800 hours. If we
Chapter 15, Problem 46(choose chapter or problem)
A lamp has three bulbs, each of a type with average lifetime 800 hours. If we model the probability of failure of the bulbs by an exponential density function with mean 800, find the probability that all three bulbs fail within a total of 1000 hours.
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