acuum tube in a sonar scanning device. Based on past experience, the vacuum tube exhibits the following failure pattern: Number of Months of Operation Probability of Failure 1 0.1 2 0.1 3
The Navy uses a certain type of vacuum tube in a sonar scanning device. Based on past experience, the vacuum tube exhibits the following failure pattern:
Number of Months of Operation Probability of Failure
1 0.1
2 0.1
3 0.2
4 0.1
5 0.3
6 0.2
Failures during operation cost $200 each, but the tube can be replaced before
failure for $50. Find the optimal replacement strategy.
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