The failure rate for a component is 2 failures for every 75 hours of operating time.How many hours can the component operate before a failure can be expected?
A)0.027
B)4.0
C)75
D)37.5
E)150

Question

Quizplus · Accepted Answer

We can use the formula:
Failure rate = 1 / (hours per failure)
2 failures / 75 hours = 1 / (hours per failure)
Cross-multiplying gives: 
hours per failure = 75 / 2 = 37.5
Therefore, the component can be expected to operate for 37.5 hours before a failure.

The Failure Rate for a Component Is 2 Failures for Every