The life of automobile voltage regulators has an exponential distribution with a mean life of six years. You purchase an automobile that is six years old, with a working voltage regulator and plan to own it for two years. a) What is the probability that the voltage regulator fails during your ownership? Round the answer to 3 decimal places (e.g. 0.987). b) If your regulator fails after you own the automobile three years and it is replaced, what is the mean time until the next failure? Enter the exact answer.

The life of automobile voltage regulators has an exponential distribution with a mean life of six years. You purchase an automobile that is six years old, with a working voltage regulator and plan to own it for two years. a) What is the probability that the voltage regulator fails during your ownership? Round the answer to 3 decimal places (e.g. 0.987). b) If your regulator fails after you own the automobile three years and it is replaced, what is the mean time until the next failure? Enter the exact answer.

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.3: Special Probability Density Functions

Problem 42E

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