The time in days between breakdowns of a machine is
Chapter 4, Problem 4.2.3(choose chapter or problem)
The time in days between breakdowns of a machine is exponentially distributed with =0.2. (a) What is the expected time between machine breakdowns? (b) What is the standard deviation of the time between machine breakdowns? (c) What is the median time between machine breakdowns? (d) What is the probability that after the machine is repaired it lasts at least a week before failing again? (e) If the machine has performed satisfactorily for six days, what is the probability that it lasts at least two more days before breaking down?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer