(Answered) There are two alarm clocks the first one is successful 85

Statistics

There are two alarm clocks. The first one is successful 85% of the time and the second one is successful 58% of the time. Suppose you only remember to set the good alarm clock. What is the probability that it will succeed on the morning of an important exam? Suppose you set both alarm clocks. What is the probability that at least one of them is successful on the morning of an important exam?

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