Acertain type of device has an advertised failure rate of 0.01 per hour. the failure rate is constant and the exponential distribution applies. (a) what is the mean time to failure? (b) what is the probability that 300 hours will pass before a failure is observed?

Step-by-step explanation:

Given that a certain type of device has an advertised failure rate of 0.01 per hour.

Since failure rate is constant we find that time required for one failure

=1(100) =100

In 100 hours 1 failure can be expected

a)Mean time to failure

b) the probability that 300 hours will pass before a failure is observed

= first 5 hours not failed and next hour failed

=

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explanation: