Question: The time to failure for a high performance light bulb is exponentially distributed with rate 0 . 0 4 ? year. a . What is

The time to failure for a high performance light bulb is exponentially distributed with rate 0.04? year.
a. What is the likelihood that the light bulb is still working after 6 years?
b. What is the design life of the light bulb at a reliability of 0.90?
The time to failure for a high performance light bulb is

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