A smoke detector system uses two devices, A and B. If smoke is present the probability that it will be detected by device A is 0.95; by device B is 0.98; and by both devices, 0.94. If smoke is present, find the probability that the smoke will be detected by device A or device B or both devices.
Answers: 2
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A smoke detector system uses two devices, A and B. If smoke is present the probability that it will...