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A Cathode Ray Tube Has a Mean Time Between Failures

Question 60

Essay

A cathode ray tube has a mean time between failures of 80 weeks.Determine these probabilities:
(i)The unit will not last 64 weeks.
(ii)The unit will last for at least 88 weeks.
(iii)Neither of the choices occurs.

Correct Answer:

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MTTF = 80 weeks.[Probabilities are from ...

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