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Suppose that the time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with A = 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. 0.9502, 0.1225 O b. NONE O c. 0.0498, 0.8775 d. 0.0498, 0.1225

Suppose that the time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with A = 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. 0.9502, 0.1225 O b. NONE O c. 0.0498, 0.8775 d. 0.0498, 0.1225

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Suppose that the time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with A = 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. 0.9502, 0.1225 O b. NONE c. 0.0498, 0.8775 O d. 0.0498, 0.1225
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 A = 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. 0.9502, 0.1225 O b. NONE c. 0.0498, 0.8775 O d. 0.0498, 0.1225
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