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Question 12 1 pts A survey among freshmen at a certain university revealed that the number of hours spent studying the week before final exams

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Question 12 1 pts A survey among freshmen at a certain university revealed that the number of hours spent studying the week before final exams was normally distributed with mean 25 and standard deviation 7. What is the probability that a randomly selected student spent between 15 and 30 hours? (Round to 4 decimal places) Previous Next

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