Suppose that the time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with 2 = 0.0003. What proportion of the fans will last at most 10,000 hours? What proportion of the fans will last at least 7000 hours? O a. NONE b. 0.9502, 0.1225 O c. 0.0498, 0.1225 d. 0.0498, 0.8775

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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EXPONENTIAL DISTRIBUTION

Suppose that the time to failure (in hours) of fans in a personal computer can be modeled by an
exponential distribution with 2 = 0.0003.
What proportion of the fans will last at most 10,000 hours?
What proportion of the fans will last at least 7000 hours?
a. NONE
b.0.9502, 0.1225
c. 0.0498, 0.1225
d. 0.0498, 0.8775
Transcribed Image Text:Suppose that the time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with 2 = 0.0003. What proportion of the fans will last at most 10,000 hours? What proportion of the fans will last at least 7000 hours? a. NONE b.0.9502, 0.1225 c. 0.0498, 0.1225 d. 0.0498, 0.8775
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