A typewriter has a mean time between failures of 420 hours and mean time to repair of 14 hours.In this case,the availability is ______.
A)96.8%
B)89.6%
C)77.3%
D)88.1%

Question

Quizplus · Accepted Answer

The availability can be calculated using the formula: Availability = MTBF / (MTBF + MTTR), where MTBF is the mean time between failures and MTTR is the mean time to repair. Substituting the given values, Availability = 420 / (420 + 14) = 420 / 434 ≈ 0.9678 or 96.8%.

A Typewriter Has a Mean Time Between Failures of 420