a. What is the probability that the software will fail after 1150 hours? b. What is the probability that the software will fail between 1050 and 1220 hours?
a. What is the probability that the software will fail after 1150 hours? b. What is the probability that the software will fail between 1050 and 1220 hours?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.9: Independent And Dependent Events
Problem 3C
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The time to first failure X of the software of a medical linear accelerator
may be modeled normal with μ = 1100 hours and σ = 50 hours.
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