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This is Statistics and Probability. Provide clean and Readable solutions thank you. 4. On the day before an exam in an online class, students e-mailed

This is Statistics and Probability. Provide clean and Readable solutions thank you.

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4. On the day before an exam in an online class, students e-mailed questions to the professor at a rate of 1 every 20 minutes, exponentially distributed. Determine the probability that that the interval between succeeding messages is more than an hour

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