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A software component has a constant failure rate and a mean time to failure (MTTF) of 50 hours. The probability that it runs for 100 hours…

2353Medium DSSSB TGT Computer Science 0 replies 1 views

A software component has a constant failure rate and a mean time to failure (MTTF) of 50 hours. The probability that it runs for 100 hours without failure is approximately

A0.865
B0.368
C0.607
D0.135

Correct answer: D

Explanation

For a constant failure rate R(t) = e^(−t / MTTF) = e⁻² ≈ 0.135.

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