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 five years. a) What is the probability that the voltage regulator fails during your ownership? Round the answer to 3 decimal places (e.g. 98.765). i
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 five years. a) What is the probability that the voltage regulator fails during your ownership? Round the answer to 3 decimal places (e.g. 98.765). i
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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Transcribed Image Text: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 five years.
a) What is the probability that the voltage
regulator fails during your ownership?
Round the answer to 3 decimal places (e.g.
98.765).
i
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.
years
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