Question

Using this tree diagram, compute the probability of system failure. Follow each branch to find all possible favorable outcomes for success, and then use that value to find the probability of system failure.

Answer 1

The system will succeed when the first alarm rings or when the first one fails, but the second one rings. The probability of this is 0.98

The probability of system failure is 1-(probability of success)= 1-0.98= 0.02

Explanation:

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Answer 2

Answer: The system will succeed when the first alarm rings or when the first one fails, but the second one rings. The probability of this is 0.98

The probability of system failure is 1-(probability of success)= 1-0.98= 0.02

Explanation: