The time between the arrival of electronic messages at your computer is exponentially distributed with a mean of two hours. What is the probability that you do not receive a message during a four-hour period? a. 0.8647 b.0.3679 C. NONE d.0.1353

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Q: Hello, thank you for your answer but where is the rest?

A: given figure

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A:

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A: Solution

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A:

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