Mathematics, 30.03.2020 21:00, alyxkellar06

The time for a professor to grade an exam is normally distributed with a mean of 16.3 minutes and a standard deviation of 4.2 minutes. What is the probability that a randomly selected exam will require less than 20 minutes to grade

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The time for a professor to grade an exam is normally distributed with a mean of 16.3 minutes and a...