A device has a MTBF of 400 hours. Assuming an exponential distribution of time to failure, what is the maximum time of allowable operation if a reliability of .995 is required?

The correct answer is D. 2 hours. See the full explanation below for the reasoning.

System Reliability

Question

Options

A20 hours
B0.02 hours
C0.2 hours
D2 hours

How the community answered

(52 responses)

A
8% (4)
B
13% (7)
C
4% (2)
D
75% (39)

Topics

#MTBF#exponential distribution#reliability calculation#time to failure

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