Question 4 0.6 0.7 A 0.8 B 0.7 0.7 (a) What is the reliability of the...
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Question 4 0.6 0.7 A 0.8 B 0.7 0.7 (a) What is the reliability of the system (i.e., A to B)? (8 marks) (b) If you are given a budget to replace any component (e.g., a single box) with a component with a reliability 0.9, which component would you replace to increase the overall reliability of the system the most? Why? (5 marks) Question 5 (12 marks) The average elementary French teacher in the English school board system has the expected life that is exponential with a mean of 30 months. Using formulas determine the following: (a) the probability that any given French teacher will last > 48 months, (b) the probability that any given French teacher will burnout before 24 months, (c) the length of service time after which the percentage of French teachers that were retired' will approximately equal 50%, (d) the probability that any French teacher will last exactly 12 months. Question 4 0.6 0.7 A 0.8 B 0.7 0.7 (a) What is the reliability of the system (i.e., A to B)? (8 marks) (b) If you are given a budget to replace any component (e.g., a single box) with a component with a reliability 0.9, which component would you replace to increase the overall reliability of the system the most? Why? (5 marks) Question 5 (12 marks) The average elementary French teacher in the English school board system has the expected life that is exponential with a mean of 30 months. Using formulas determine the following: (a) the probability that any given French teacher will last > 48 months, (b) the probability that any given French teacher will burnout before 24 months, (c) the length of service time after which the percentage of French teachers that were retired' will approximately equal 50%, (d) the probability that any French teacher will last exactly 12 months.
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