2. The time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with 2 = 0.0003. a. What proportion of the fans will last at least 10,000 hours? b. What proportion of the fans will last at most 7000 hours?
2. The time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with 2 = 0.0003. a. What proportion of the fans will last at least 10,000 hours? b. What proportion of the fans will last at most 7000 hours?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Exercise 6.2.2

Transcribed Image Text:2. The time to failure (in hours) of fans in a personal computer can be modeled by an
exponential distribution with 2 = 0.0003.
a. What proportion of the fans will last at least 10,000 hours?
b. What proportion of the fans will last at most 7000 hours?
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